Classification
330 - Economics
575
320 - Political science
557
340 - Law
128
300 - Social sciences
100
900 - History & geography
85
370 - Education
26
630 - Agriculture & related technologies
23
658 - General management
19
304 - Factors affecting social behavior
17
610 - Medicine & health
16
338 - Production
12
700 - The arts; fine & decorative arts
12
800 - Literature & rhetoric
12
000 - Computer science, information & general works
11
301 - Sociology & anthropology
6
363 - Other social problems & services
5
381 - Commerce
5
380 - Commerce, communications & transportation
4
410 - Linguistics
4
972 - Middle America; Mexico
4
140 - Specific philosophical schools
3
158 - Applied psychology
3
170 - Ethics
3
200 - Religion
3
302 - Social interaction
3
305 - Social groups
3
321 - Systems of governments & states
3
332 - Financial economics
3
333 - Economics of land & energy
3
400 - Language
3
576 - Genetics & evolution
3
650 - Management & auxiliary services
3
820 - English & Old English literatures
3
946 - Iberian Peninsula & adjacent islands
3
100 - Philosophy & psychology
2
323 - Civil & political rights
2
325 - International migration & colonization
2
327 - International relations
2
331 - Labor economics
2
362 - Social welfare problems & services
2
384 - Communications; telecommunication
2
500 - Natural sciences & mathematics
2
780 - Music
2
001 - Knowledge
1
101 - Theory of philosophy
1
160 - Logic
1
196 - Philosophy of Spain & Portugal
1
270 - History of Christianity & Christian church
1
316 - General statistics of Africa
1
322 - Relation of state to organized groups
1
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