Classification
330 - Economics
142,293
820 - English & Old English literatures
80,870
320 - Political science
79,965
600 - Technology
63,477
340 - Law
61,350
658 - General management
33,180
610 - Medicine & health
32,305
005 - Computer programming, programs & data
27,904
300 - Social sciences
27,585
620 - Engineering & allied operations
25,970
500 - Natural sciences & mathematics
25,340
900 - History & geography
23,797
621 - Applied physics
21,388
616 - Diseases
21,222
006 - Special computer methods
18,205
004 - Data processing & computer science
17,906
780 - Music
15,081
000 - Computer science, information & general works
14,587
333 - Economics of land & energy
13,687
650 - Management & auxiliary services
11,668
700 - The arts; fine & decorative arts
11,472
370 - Education
11,415
331 - Labor economics
9,480
530 - Physics
9,018
800 - Literature & rhetoric
8,981
338 - Production
8,685
363 - Other social problems & services
8,495
510 - Mathematics
7,609
380 - Commerce, communications & transportation
7,095
302 - Social interaction
6,463
304 - Factors affecting social behavior
6,406
519 - Probabilities & applied mathematics
6,244
570 - Life sciences; biology
6,242
230 - Christianity & Christian theology
6,186
630 - Agriculture & related technologies
6,142
617 - Surgery & related medical specialties
5,951
301 - Sociology & anthropology
5,943
100 - Philosophy & psychology
5,743
515 - Analysis
5,519
200 - Religion
5,214
332 - Financial economics
5,143
540 - Chemistry & allied sciences
5,110
571 - Physiology & related subjects
5,087
306 - Culture & institutions
5,085
001 - Knowledge
4,933
629 - Other branches of engineering
4,893
280 - Christian denominations & sects
4,612
346 - Private law
4,571
250 - Christian orders & local church
4,459
745 - Decorative arts
4,398
more ...