Classification
330 - Economics
12,420
320 - Political science
11,443
900 - History & geography
2,329
340 - Law
1,712
300 - Social sciences
1,458
820 - English & Old English literatures
1,328
333 - Economics of land & energy
1,042
576 - Genetics & evolution
944
370 - Education
897
840 - Literatures of Romance languages
868
363 - Other social problems & services
615
780 - Music
508
380 - Commerce, communications & transportation
499
630 - Agriculture & related technologies
476
610 - Medicine & health
421
510 - Mathematics
351
304 - Factors affecting social behavior
344
336 - Public finance
208
700 - The arts; fine & decorative arts
204
600 - Technology
200
658 - General management
170
200 - Religion
130
940 - History of Europe
111
170 - Ethics
95
100 - Philosophy & psychology
93
000 - Computer science, information & general works
88
500 - Natural sciences & mathematics
81
670 - Manufacturing
74
800 - Literature & rhetoric
69
512 - Algebra
53
420 - English & Old English
52
650 - Management & auxiliary services
52
519 - Probabilities & applied mathematics
51
440 - Romance languages; French
50
515 - Analysis
50
302 - Social interaction
49
230 - Christianity & Christian theology
46
260 - Social & ecclesiastical theology
44
280 - Christian denominations & sects
44
360 - Social problems & services; associations
40
301 - Sociology & anthropology
35
005 - Computer programming, programs & data
31
240 - Christian moral & devotional theology
31
384 - Communications; telecommunication
31
530 - Physics
31
130 - Parapsychology & occultism
29
338 - Production
29
910 - Geography & travel
28
270 - History of Christianity & Christian church
25
331 - Labor economics
25
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