Class Summary
- 30 - SOCIAL SCIENCES (1)
- 301 - SOCIOLOGY PHILOSOPHY (7)
- 302 - SOCIOLOGCAL PHENOMENA (84)
- 303 - OTHER SOCIOLOGCAL PHENOMENA (86)
- 304 - SOCIOLOGY ESSAYS (35)
- 305 - SOCIOLOGY PERIODICALS (257)
- 306 - SOCIOLOGY SOCIETIES (261)
- 309 - SOCIOLOGY HISTORY
- 31 - SOCIOLOGY STATISTICS (3)
- 311 - SOCIOLOGY METHODS
- 312 - PROGRESS OF POPULATION
- 313 - PROGRESS OF CIVILIZATION
- 314 - EUROPE SOCIOLOGY
- 315 - ASIA SOCIOLOGY
- 316 - AFRICA SOCIOLOGY
- 317 - NORTH AMERICA SOCIOLOGY
- 318 - SOUTH AMERICA SOCIOLOGY
- 319 - OCEANICA SOCIOLOGY
- 32 - POLITICAL SCIENCE (101) / United States Constitution / The 50 States Constitutions
- 321 - PATRIARCHAL INSTITUTIONS (57)
- 322 - FEUDAL INSTITUTIONS (29)
- 323 - MONARCHIC INSTITUTIONS (111)
- 324 - REPUBLICAN INSTITUTIONS (136)
- 325 - COLONIES
- 326 - SLAVERY (3)
- 327 - FOREIGN
- 328 - LEGISLATIVE ANNALS (66)
- 329 - POLITICAL ESSAYS
- 33 - POLITICAL ECONOMY (62)
- 331 - CAPITAL
- 332 - BANKS
- 334 - CREDIT
- 335 - COMMUNISM (34)
- 336 - PUBLIC FUNDS
- 337 - PROTECTION
- 338 - PRODUCTION POLITICS (412)
- 339 - PAUPERISM (77)
- 34 - LAW (42) / The 50 TITLES of the United States CODE
- 341 - INTERNATIONAL LAW (370)
- 342 - CONSTITUTIONAL
- 343 - STATUTE
- 344 - EQUITY LAW (303)
- 345 - CRIMINAL LAW (235)
- 346 - MARITIME LAW (388)
- 347 - MARTIAL LAW (127)
- 348 - CIVIL
- 349 - EVIDENCE
- 35 - ADMINISTRATION (451)
- 351 - CIVIL SERVICE (673)
- 352 - TREASURY ADMINISTRATION (489)
- 353 - INTERIOR ADMINISTRATION (26)
- 354 - POLICE ADMINISTRATION (8)
- 355 - ARMY ADMINISTRATION (436)
- 356 - INFANTRY ADMINISTRATION (18)
- 357 - CAVALRY ADMINISTRATION (14)
- 358 - ARTILLERY ADMINISTRATION (141)
- 359 - NAVY ADMINISTRATION (97)
- 36 - ASSOCIATIONS
- 361 - CHARITABLE INSTITUTIONS (83)
- 362 - CHARITABLE-RELIGIOUS INSTITUTIONS (351)
- 363 - POLITICAL INSTITUTIONS (437)
- 364 - REFORMATORY
- 365 - PRISONS (78)
- 366 - SECRET SOCIETIES (24)
- 367 - TRADES UNIONS (5)
- 368 - INSURANCE INSTITUTIONS (183)
- 369 - OTHER INSTITUTIONS (23)
- 37 - EDUCATION (75)
- 372 - ELEMENTARY EDUCATION (87)
- 373 - HIGHER EDUCATION (30)
- 374 - SELF-EDUCATION (28)
- 375 - CLASSICAL
- 376 - FEMALE EDUCATION (3)
- 377 - RELIGIOUS
- 378 - SCHOOLS
- 379 - EDUCATION REPORTS (36)
- 381 - DOMESTIC TRADE (75)
- 382 - FOREIGN TRADE (63)
- 383 - POST OFFICE (54)
- 384 - TELEGRAPH (173)
- 385 - RAILROAD
- 386 - CANAL TRANSPORTATION (56)
- 387 - AIR
- 388 - CITY TRANSIT (282)
- 389 - WEIGHTS
- 39 - CUSTOMS
- 391 - ANCIENT CUSTOMS
- 392 - MEDIEVAL CUSTOMS
- 393 - MODERN CUSTOMS
- 394 - EUROPE CUSTOMS
- 395 - ASIA CUSTOMS
- 396 - AFRICA CUSTOMS
- 397 - AMERICA CUSTOMS
- 398 - FOLKLORES (147)
- 399 - OCEANICA CUSTOMS
&&&
| DDC | Course Title | 🇺🇸 | 🇪🇺 | 🎓 | 📚 | 🏫 | 📜 | ▶️ | 🌐 | Actions |
|---|---|---|---|---|---|---|---|---|---|---|
| 384(0005) | Telephone stations | 66 | ||||||||
| 384(0006) | Movie by Internet | 120 | ||||||||
| 384(0007) | Cinemax | 154 | ||||||||
| 384(0008) | Video cassettes | 74 | ||||||||
| 384(0009) | Closed-circuit television | 150 | ||||||||
| 384(0010) | Morse code telegraphy | 26 | ||||||||
| 384(0011) | Competition | 180 | ||||||||
| 384(0012) | Cloud computing | 189 | ||||||||
| 384(0013) | Ship-to-shore communication | 184 | ||||||||
| 384(0014) | Mass communication | 167 | ||||||||
| 384(0015) | Shipshore communication | |||||||||
| 384(0016) | Encrypted communication | 144 | ||||||||
| 384(0017) | Wireless communication | 151 | ||||||||
| 384(0018) | Submarine cable communication | 173 | ||||||||
| 384(0019) | Radio communication | 159 | ||||||||
| 384(0020) | Satellite communication | 153 | ||||||||
| 384(0021) | Telephone communication | 133 | ||||||||
| 384(0022) | Communications | 135 | ||||||||
| 384(0023) | Internet communications | 110 | ||||||||
| 384(0024) | 164 | |||||||||
| 384(0025) | Switchboards | 35 | ||||||||
| 384(0026) | Compact discs | 184 | ||||||||
| 384(0027) | Video discs | 150 | ||||||||
| 384(0028) | LOD - optical disks- | 48 | ||||||||
| 384(0029) | Laser optical disks | 191 | ||||||||
| 384(0030) | Efficiency | 182 | ||||||||
| 384(0031) | Showtime | 125 | ||||||||
| 384(0032) | Broadcasting stations radio | 110 | ||||||||
| 384(0033) | Radio stations | 68 | ||||||||
| 384(0034) | Broadcasting stations | 23 | ||||||||
| 384(0035) | Broadcasting stations television | 51 | ||||||||
| 384(0036) | Telegraphy stations | 168 | ||||||||
| 384(0037) | Low power television (LPTV ) stations | 87 | ||||||||
| 384(0038) | Television stations | 52 | ||||||||
| 384(0039) | AM radio stations | 133 | ||||||||
| 384(0040) | FM radio stations | 52 | ||||||||
| 384(0041) | Fax - transmission- | 175 | ||||||||
| 384(0042) | Finance | 145 | ||||||||
| 384(0043) | Transborder data flow | 141 | ||||||||
| 384(0044) | Video records | 74 | ||||||||
| 384(0045) | Video recordings | 101 | ||||||||
| 384(0046) | Video cassette recorders | 49 | ||||||||
| 384(0047) | Video recorders | 57 | ||||||||
| 384(0048) | Motion pictures | 154 | ||||||||
| 384(0049) | Internet | 107 | ||||||||
| 384(0050) | Videodisc players (VDP) | |||||||||
| 384(0051) | Videogames players | 115 | ||||||||
| 384(0052) | Programming languages | 130 | ||||||||
| 384(0053) | Telephone lines | 126 | ||||||||
| 384(0054) | Telephone calls | 115 | ||||||||
| 384(0055) | Free-hands telephone calls | 145 | ||||||||
| 384(0056) | Broadcasters | 41 | ||||||||
| 384(0057) | Rates | 180 | ||||||||
| 384(0058) | Scheduling broadcasting services | 50 | ||||||||
| 384(0059) | Radio programs | 110 | ||||||||
| 384(0060) | Television programs | 59 | ||||||||
| 384(0061) | Ownership | 100 | ||||||||
| 384(0062) | Advertising by mobile | 133 | ||||||||
| 384(0063) | Cellular radio | 132 | ||||||||
| 384(0064) | Radiocommunication | 43 | ||||||||
| 384(0065) | Broadcasting | 24 | ||||||||
| 384(0066) | General television broadcasting | 19 | ||||||||
| 384(0067) | Television broadcasting | 16 | ||||||||
| 384(0068) | Radiotelephony | 35 | ||||||||
| 384(0069) | Radiotelegraphy | |||||||||
| 384(0070) | Networks | |||||||||
| 384(0071) | Broadcasting networks | |||||||||
| 384(0072) | Value-added networks computer communication | |||||||||
| 384(0073) | Social networks | |||||||||
| 384(0074) | Scenic rivers natural resources | 117 | ||||||||
| 384(0075) | Communication satellites | 122 | ||||||||
| 384(0076) | Long-distance service | 144 | ||||||||
| 384(0077) | Local telephone service | 144 | ||||||||
| 384(0078) | Training personnel management local governments | 121 | ||||||||
| 384(0079) | Recordings communication services | 131 | ||||||||
| 384(0080) | Direct distance dialing | 36 | ||||||||
| 384(0081) | Amateur radio | 166 | ||||||||
| 384(0082) | Citizens band radio | 152 | ||||||||
| 384(0083) | IPTV radio | 162 | ||||||||
| 384(0084) | Visual signaling | 167 | ||||||||
| 384(0085) | Telegraphy | 160 | ||||||||
| 384(0086) | Teletext | 26 | ||||||||
| 384(0087) | Television | 78 | ||||||||
| 384(0088) | Videotex | 8 | ||||||||
| 384(0089) | Broadcast videotex | |||||||||
| 384(0090) | Interactive videotex | |||||||||
| 384(0091) | Emergency telephone services | 150 | ||||||||
| 384(0092) | Telephone services | 68 | ||||||||
| 384(0093) | Telephone | 86 | ||||||||
| 384(0094) | Teletex | |||||||||
| 384(0095) | Viewdata | 8 | ||||||||
| 384(0096) | Cable communication systems | 129 | ||||||||
| 384(0097) | Wire communication systems | 125 | ||||||||
| 384(0098) | Push-button systems | 156 | ||||||||
| 384(0099) | Direct broadcast satellite systems | 29 | ||||||||
| 384(0100) | Push-button telephone | 166 | ||||||||
| 384(0101) | Community antenna television systems | 117 | ||||||||
| 384(0102) | CATV systems | 118 | ||||||||
| 384(0103) | TDT systems | 144 | ||||||||
| 384(0104) | Power supply | 165 | ||||||||
| 384(0105) | Stock tickers | 147 | ||||||||
| 384(0106) | Theater television | 165 | ||||||||
| 384(0107) | Telecommunication | 149 | ||||||||
| 384(0108) | Telefax | 93 | ||||||||
| 384(0109) | Telephony | 162 | ||||||||
| 384(0110) | Smartphones | 135 | ||||||||
| 384(0111) | Portable telephones | 94 | ||||||||
| 384(0112) | Printing telegraphy | 68 | ||||||||
| 384(0113) | Teletype | 147 | ||||||||
| 384(0114) | IPTV | 28 | ||||||||
| 384(0115) | Home Box Office (HBO ) | 14 | ||||||||
| 384(0116) | Pay-cable television | 296 | ||||||||
| 384(0117) | Controlled transmission television | 278 | ||||||||
| 384(0118) | Free television | 226 | ||||||||
| 384(0119) | Cable television | 86 | ||||||||
| 384(0120) | Subscription television | 206 | ||||||||
| 384(0121) | Premium television | 120 | ||||||||
| 384(0122) | Private television | 97 | ||||||||
| 384(0123) | Public television | 57 | ||||||||
| 384(0124) | Telex | 121 | ||||||||
| 384(0125) | Communications workers | 149 | ||||||||
| 384(0126) | Telecommunications workers | 77 | ||||||||
| 384(0127) | Facsimile transmission | 9 | ||||||||
| 384(0128) | Pay television | 89 | ||||||||
| 384(0129) | Videocassette players | 62 | ||||||||
| 384(0130) | Videocassettes | 74 | ||||||||
| 384(0131) | Videodiscs | 59 | ||||||||
| 384(0132) | Videorecordings | 9 | ||||||||
| 384(0133) | Videorecords | 3 | ||||||||
| 384(0134) | TELEGRAPH (173) | 113 | ||||||||
| 385 | RAILROAD | |||||||||
| 385(0001) | Fueling | 109 | ||||||||
| 385(0002) | Automobile cars - railroad- | 151 | ||||||||
| 385(0003) | Victualing | 7 | ||||||||
| 385(0004) | Sleeping cars | 130 | ||||||||
| 385(0005) | Traffic control | 168 | ||||||||
| 385(0006) | Railroad crossings | 175 | ||||||||
| 385(0007) | Crossings - railroad- | 1 | ||||||||
| 385(0008) | Crossings | 109 | ||||||||
| 385(0009) | Railroad buildings | 157 | ||||||||
| 385(0010) | Railroad freight stations | 120 | ||||||||
| 385(0011) | Railroad passenger stations | 80 | ||||||||
| 385(0012) | Rack railroads | 72 | ||||||||
| 385(0013) | Aerial railways | 138 | ||||||||
| 385(0014) | Broad-gage railroads | 127 | ||||||||
| 385(0015) | Ship railroads | 88 | ||||||||
| 385(0016) | Cable railways | 103 | ||||||||
| 385(0017) | Mountain railroads | 142 | ||||||||
| 385(0018) | Standard-gage railroads | 64 | ||||||||
| 385(0019) | Narrow-gage railroads | 40 | ||||||||
| 385(0020) | Funicular railroads | 10 | ||||||||
| 385(0021) | Inclined railroads | 32 | ||||||||
| 385(0022) | Industrial railroads | 99 | ||||||||
| 385(0023) | Monorail railroads | 104 | ||||||||
| 385(0024) | Special-purpose railroads | 93 | ||||||||
| 385(0025) | Railroads | 91 | ||||||||
| 385(0026) | Interurban railroads | 148 | ||||||||
| 385(0027) | Railroad workers | 101 | ||||||||
| 385(0028) | Boxcars | 76 | ||||||||
| 385(0029) | Cabooses | 22 | ||||||||
| 385(0030) | Communication facilities | 140 | ||||||||
| 385(0031) | Gas-turbine locomotives | 139 | ||||||||
| 385(0032) | Steam locomotives | 125 | ||||||||
| 385(0033) | Diesel locomotives | 101 | ||||||||
| 385(0034) | Electric locomotives | 13 | ||||||||
| 385(0035) | Semidiesel locomotives | 1 | ||||||||
| 385(0036) | Locomotives | 13 | ||||||||
| 385(0037) | Locomotives transportation services | 14 | ||||||||
| 385(0038) | Monorail rolling stock | 15 | ||||||||
| 385(0039) | Rolling stock | 171 | ||||||||
| 385(0040) | Passenger-train cars | 113 | ||||||||
| 385(0041) | Railroad yards | 158 | ||||||||
| 385(0042) | Air-compression-powered engineering | 134 | ||||||||
| 385(0043) | Bridges | 179 | ||||||||
| 385(0044) | Gondola cars | 94 | ||||||||
| 385(0045) | Signals | 172 | ||||||||
| 385(0046) | Signals railroad transportation | 127 | ||||||||
| 385(0047) | Piggyback cargo services | 88 | ||||||||
| 385(0048) | Unitized cargo services | 146 | ||||||||
| 385(0049) | Freight services | 186 | ||||||||
| 385(0050) | Freight services railroad | 105 | ||||||||
| 385(0051) | Passenger services | 151 | ||||||||
| 385(0052) | Passenger services railroad | 77 | ||||||||
| 385(0053) | Express services | 148 | ||||||||
| 385(0054) | Express services railroad | 92 | ||||||||
| 385(0055) | Railroad terminals | 98 | ||||||||
| 385(0056) | Railroad terminals transportation services | 40 | ||||||||
| 385(0057) | Passenger terminals | 108 | ||||||||
| 385(0058) | Hoppers - railroad cars- | 111 | ||||||||
| 385(0059) | Railroad transportation workers | 81 | ||||||||
| 385(0060) | Railroad transportation | 68 | ||||||||
| 385(0061) | Trains | 146 | ||||||||
| 385(0062) | Tunnels transportation services | 90 | ||||||||
| 385(0063) | Dining cars | 130 | ||||||||
| 385(0064) | Club cars | 129 | ||||||||
| 385(0065) | Freight cars | 87 | ||||||||
| 385(0066) | Mail cars | 113 | ||||||||
| 385(0067) | Cattle cars | 149 | ||||||||
| 385(0068) | Work cars | 138 | ||||||||
| 385(0069) | Baggage cars | 98 | ||||||||
| 385(0070) | Flatcars | 18 | ||||||||
| 385(0071) | Refrigerator cars | 96 | ||||||||
| 385(0072) | Lounge cars | 63 | ||||||||
| 385(0073) | Chair cars | 135 | ||||||||
| 385(0074) | Tank cars | 111 | ||||||||
| 385(0075) | Handcars | 1 | ||||||||
| 385(0076) | Permanent way of railroad | 73 | ||||||||
| 385(0077) | Permanent way | 124 | ||||||||
| 385(0078) | RAILROAD | 66 | ||||||||
| 386 | CANAL TRANSPORTATION (56) | |||||||||
| 386(0001) | Rafts | 102 | ||||||||
| 386(0002) | Barges | 25 | ||||||||
| 386(0003) | Canalboats power-driven | 2 | ||||||||
| 386(0004) | Canalboats | |||||||||
| 386(0005) | River boats | 143 | ||||||||
| 386(0006) | Ships | 144 | ||||||||
| 386(0007) | Rowboats | 57 | ||||||||
| 386(0008) | Ships transportation services | 138 | ||||||||
| 386(0009) | Panama Canal - panama- | 133 | ||||||||
| 386(0010) | Suez Canal | 13 | ||||||||
| 386(0011) | Ship canals | |||||||||
| 386(0012) | Ship canals transportation services | |||||||||
| 386(0013) | Interoceanic canals | 206 | ||||||||
| 386(0014) | Barge canals | 202 | ||||||||
| 386(0015) | Canoes | 80 | ||||||||
| 386(0016) | Traffic control | 330 | ||||||||
| 386(0017) | Waterways | 276 | ||||||||
| 386(0018) | Port facilities transportation services | 206 | ||||||||
| 386(0019) | Small craft canals | 286 | ||||||||
| 386(0020) | Ports | 302 | ||||||||
| 386(0021) | Ports inland waterway | 288 | ||||||||
| 386(0022) | Scenic rivers transportation | 378 | ||||||||
| 386(0023) | Freight services | 360 | ||||||||
| 386(0024) | Freight services inland waterway | 264 | ||||||||
| 386(0025) | Passenger services | 316 | ||||||||
| 386(0026) | Passenger services inland waterway | 242 | ||||||||
| 386(0027) | Piloting services | 212 | ||||||||
| 386(0028) | Tug services | 282 | ||||||||
| 386(0029) | Inland waterway transportation | 104 | ||||||||
| 386(0030) | Express services | 296 | ||||||||
| 386(0031) | Tehuantepec Canal | 58 | ||||||||
| 386(0032) | Freight terminals | 306 | ||||||||
| 386(0033) | Passenger terminals | 204 | ||||||||
| 386(0034) | Ferry transportation workers | 218 | ||||||||
| 386(0035) | Ferryboats | 74 | ||||||||
| 386(0036) | Ferry transportation | 308 | ||||||||
| 386(0037) | River transportation | 326 | ||||||||
| 386(0038) | Lake transportation | 244 | ||||||||
| 386(0039) | Canal transportation | 278 | ||||||||
| 386(0040) | Inland water transportation | 150 |
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