Classification
658 - General management
16,719
005 - Computer programming, programs & data
13,836
330 - Economics
11,235
331 - Labor economics
8,282
500 - Natural sciences & mathematics
8,115
000 - Computer science, information & general works
7,319
620 - Engineering & allied operations
5,716
006 - Special computer methods
5,243
302 - Social interaction
4,236
745 - Decorative arts
4,214
004 - Data processing & computer science
4,010
338 - Production
3,841
384 - Communications; telecommunication
3,454
300 - Social sciences
3,405
381 - Commerce
2,571
332 - Financial economics
2,496
650 - Management & auxiliary services
1,997
621 - Applied physics
1,952
670 - Manufacturing
1,936
770 - Photography, photographs & computer art
1,877
158 - Applied psychology
1,669
374 - Adult education
1,427
153 - Mental processes & intelligence
1,254
510 - Mathematics
1,036
519 - Probabilities & applied mathematics
918
380 - Commerce, communications & transportation
777
001 - Knowledge
647
778 - Fields & kinds of photography
540
629 - Other branches of engineering
505
741 - Drawing & drawings
497
794 - Indoor games of skill
497
791 - Public performances
474
771 - Techniques, equipment & materials
468
303 - Social processes
410
600 - Technology
391
363 - Other social problems & services
372
368 - Insurance
358
515 - Analysis
346
777 - [Unassigned]
343
011 - Bibliographies
331
364 - Criminology
312
808 - Rhetoric & collections of literature
307
781 - General principles & musical forms
300
339 - Macroeconomics & related topics
289
610 - Medicine & health
287
305 - Social groups
280
333 - Economics of land & energy
279
659 - Advertising & public relations
273
362 - Social welfare problems & services
271
657 - Accounting
271
more ...