Classification
330 - Economics
112,914
820 - English & Old English literatures
78,107
320 - Political science
53,622
340 - Law
42,114
005 - Computer programming, programs & data
26,345
610 - Medicine & health
25,843
658 - General management
22,712
620 - Engineering & allied operations
18,975
006 - Special computer methods
17,465
616 - Diseases
16,154
004 - Data processing & computer science
14,100
300 - Social sciences
13,579
621 - Applied physics
12,872
000 - Computer science, information & general works
12,556
900 - History & geography
12,353
500 - Natural sciences & mathematics
11,408
333 - Economics of land & energy
11,155
331 - Labor economics
9,170
700 - The arts; fine & decorative arts
8,210
780 - Music
7,605
338 - Production
7,413
600 - Technology
7,392
530 - Physics
7,194
363 - Other social problems & services
7,062
370 - Education
6,952
380 - Commerce, communications & transportation
6,027
230 - Christianity & Christian theology
5,858
800 - Literature & rhetoric
5,739
570 - Life sciences; biology
5,230
519 - Probabilities & applied mathematics
5,155
510 - Mathematics
5,153
571 - Physiology & related subjects
4,962
302 - Social interaction
4,929
304 - Factors affecting social behavior
4,871
515 - Analysis
4,839
630 - Agriculture & related technologies
4,767
280 - Christian denominations & sects
4,522
250 - Christian orders & local church
4,431
617 - Surgery & related medical specialties
4,280
745 - Decorative arts
4,164
520 - Astronomy & allied sciences
4,086
332 - Financial economics
3,912
551 - Geology, hydrology & meteorology
3,819
612 - Human physiology
3,779
240 - Christian moral & devotional theology
3,771
650 - Management & auxiliary services
3,717
629 - Other branches of engineering
3,688
170 - Ethics
3,552
260 - Social & ecclesiastical theology
3,535
384 - Communications; telecommunication
3,496
more ...