Classification
330 - Economics
9,168
340 - Law
7,462
320 - Political science
3,100
610 - Medicine & health
2,223
820 - English & Old English literatures
1,972
900 - History & geography
732
300 - Social sciences
477
658 - General management
448
700 - The arts; fine & decorative arts
415
363 - Other social problems & services
411
333 - Economics of land & energy
364
370 - Education
351
338 - Production
321
332 - Financial economics
309
600 - Technology
283
970 - History of North America
241
576 - Genetics & evolution
229
000 - Computer science, information & general works
227
331 - Labor economics
217
380 - Commerce, communications & transportation
208
355 - Military science
206
362 - Social welfare problems & services
192
500 - Natural sciences & mathematics
177
620 - Engineering & allied operations
176
800 - Literature & rhetoric
174
973 - United States
147
327 - International relations
138
940 - History of Europe
136
304 - Factors affecting social behavior
134
140 - Specific philosophical schools
132
342 - Constitutional & administrative law
127
305 - Social groups
110
346 - Private law
110
302 - Social interaction
108
306 - Culture & institutions
101
301 - Sociology & anthropology
95
630 - Agriculture & related technologies
95
280 - Christian denominations & sects
92
170 - Ethics
90
350 - Public administration & military science
87
347 - Civil procedure & courts
85
341 - Law of nations
84
343 - Military, tax, trade & industrial law
80
100 - Philosophy & psychology
74
158 - Applied psychology
73
371 - Schools & their activities; special education
72
005 - Computer programming, programs & data
71
580 - Plants (Botany)
70
780 - Music
69
336 - Public finance
68
more ...