Classification
330 - Economics
142,334
820 - English & Old English literatures
80,870
320 - Political science
79,969
600 - Technology
62,152
340 - Law
61,342
658 - General management
33,180
610 - Medicine & health
32,307
005 - Computer programming, programs & data
27,905
300 - Social sciences
27,587
620 - Engineering & allied operations
26,022
500 - Natural sciences & mathematics
25,359
900 - History & geography
23,941
621 - Applied physics
21,388
616 - Diseases
21,220
006 - Special computer methods
18,206
004 - Data processing & computer science
17,907
780 - Music
15,077
000 - Computer science, information & general works
14,595
333 - Economics of land & energy
13,661
650 - Management & auxiliary services
11,668
700 - The arts; fine & decorative arts
11,504
370 - Education
11,394
331 - Labor economics
9,481
800 - Literature & rhetoric
9,156
530 - Physics
9,033
338 - Production
8,682
363 - Other social problems & services
8,495
510 - Mathematics
7,609
380 - Commerce, communications & transportation
7,103
302 - Social interaction
6,457
304 - Factors affecting social behavior
6,395
519 - Probabilities & applied mathematics
6,243
570 - Life sciences; biology
6,227
230 - Christianity & Christian theology
6,186
630 - Agriculture & related technologies
6,147
617 - Surgery & related medical specialties
5,951
301 - Sociology & anthropology
5,931
100 - Philosophy & psychology
5,766
515 - Analysis
5,518
200 - Religion
5,146
332 - Financial economics
5,143
540 - Chemistry & allied sciences
5,137
571 - Physiology & related subjects
5,087
306 - Culture & institutions
5,083
001 - Knowledge
4,933
629 - Other branches of engineering
4,890
280 - Christian denominations & sects
4,612
346 - Private law
4,571
250 - Christian orders & local church
4,459
745 - Decorative arts
4,398
more ...