Classification
330 - Economics
110,768
820 - English & Old English literatures
78,104
320 - Political science
53,172
340 - Law
41,934
610 - Medicine & health
24,849
005 - Computer programming, programs & data
24,783
658 - General management
21,816
620 - Engineering & allied operations
18,234
006 - Special computer methods
16,729
616 - Diseases
15,752
004 - Data processing & computer science
14,159
000 - Computer science, information & general works
12,493
621 - Applied physics
12,463
300 - Social sciences
12,288
900 - History & geography
11,796
500 - Natural sciences & mathematics
11,162
333 - Economics of land & energy
10,834
331 - Labor economics
8,885
700 - The arts; fine & decorative arts
7,767
780 - Music
7,571
338 - Production
7,410
600 - Technology
7,139
530 - Physics
7,106
363 - Other social problems & services
6,852
370 - Education
6,655
380 - Commerce, communications & transportation
5,857
230 - Christianity & Christian theology
5,853
800 - Literature & rhetoric
5,623
519 - Probabilities & applied mathematics
5,132
570 - Life sciences; biology
5,084
510 - Mathematics
5,059
302 - Social interaction
4,853
515 - Analysis
4,770
630 - Agriculture & related technologies
4,679
304 - Factors affecting social behavior
4,629
571 - Physiology & related subjects
4,575
280 - Christian denominations & sects
4,520
250 - Christian orders & local church
4,431
617 - Surgery & related medical specialties
4,178
745 - Decorative arts
4,098
520 - Astronomy & allied sciences
4,086
332 - Financial economics
3,911
240 - Christian moral & devotional theology
3,771
612 - Human physiology
3,745
551 - Geology, hydrology & meteorology
3,705
650 - Management & auxiliary services
3,672
629 - Other branches of engineering
3,545
260 - Social & ecclesiastical theology
3,535
170 - Ethics
3,492
384 - Communications; telecommunication
3,413
more ...