Classification
370 - Education
26
340 - Law
23
330 - Economics
21
327 - International relations
17
320 - Political science
9
900 - History & geography
9
304 - Factors affecting social behavior
6
610 - Medicine & health
5
303 - Social processes
4
338 - Production
4
380 - Commerce, communications & transportation
4
301 - Sociology & anthropology
3
800 - Literature & rhetoric
3
300 - Social sciences
2
325 - International migration & colonization
2
382 - International commerce
2
576 - Genetics & evolution
2
700 - The arts; fine & decorative arts
2
972 - Middle America; Mexico
2
000 - Computer science, information & general works
1
016 - Bibliographies of works on specific subjects
1
100 - Philosophy & psychology
1
158 - Applied psychology
1
200 - Religion
1
308 - [Unassigned]
1
324 - The political process
1
354 - Administration of economy & environment
1
362 - Social welfare problems & services
1
363 - Other social problems & services
1
381 - Commerce
1
650 - Management & auxiliary services
1
658 - General management
1
780 - Music
1
973 - United States
1
979 - Great Basin & Pacific Slope region
1