Classification
658 - General management
17,271
005 - Computer programming, programs & data
14,829
330 - Economics
11,292
000 - Computer science, information & general works
10,156
331 - Labor economics
8,405
500 - Natural sciences & mathematics
8,246
620 - Engineering & allied operations
5,692
006 - Special computer methods
5,636
745 - Decorative arts
4,346
004 - Data processing & computer science
4,280
302 - Social interaction
4,261
338 - Production
3,746
384 - Communications; telecommunication
3,489
300 - Social sciences
3,410
381 - Commerce
2,578
332 - Financial economics
2,510
650 - Management & auxiliary services
2,059
670 - Manufacturing
1,959
621 - Applied physics
1,956
770 - Photography, photographs & computer art
1,922
158 - Applied psychology
1,712
374 - Adult education
1,613
153 - Mental processes & intelligence
1,266
510 - Mathematics
921
519 - Probabilities & applied mathematics
860
380 - Commerce, communications & transportation
758
001 - Knowledge
658
778 - Fields & kinds of photography
548
794 - Indoor games of skill
518
741 - Drawing & drawings
510
771 - Techniques, equipment & materials
488
629 - Other branches of engineering
479
011 - Bibliographies
474
791 - Public performances
413
303 - Social processes
364
777 - [Unassigned]
350
368 - Insurance
349
600 - Technology
333
657 - Accounting
305
808 - Rhetoric & collections of literature
298
781 - General principles & musical forms
291
364 - Criminology
290
339 - Macroeconomics & related topics
280
659 - Advertising & public relations
276
150 - Psychology
242
170 - Ethics
241
155 - Differential & developmental psychology
222
363 - Other social problems & services
210
025 - Library operations
199
740 - Drawing & decorative arts
198
more ...