Classification
320 - Political science
207
900 - History & geography
95
300 - Social sciences
54
100 - Philosophy & psychology
37
700 - The arts; fine & decorative arts
28
330 - Economics
21
340 - Law
19
200 - Religion
18
301 - Sociology & anthropology
10
333 - Economics of land & energy
9
363 - Other social problems & services
9
000 - Computer science, information & general works
7
140 - Specific philosophical schools
7
297 - Islam, Babism & Bahai Faith
7
335 - Socialism & related systems
7
304 - Factors affecting social behavior
6
321 - Systems of governments & states
6
380 - Commerce, communications & transportation
5
400 - Language
5
576 - Genetics & evolution
5
324 - The political process
4
370 - Education
4
610 - Medicine & health
4
800 - Literature & rhetoric
4
303 - Social processes
3
581 - Specific topics in natural history
3
600 - Technology
3
947 - Eastern Europe; Russia
3
981 - Brazil
3
170 - Ethics
2
305 - Social groups
2
306 - Culture & institutions
2
307 - Communities
2
322 - Relation of state to organized groups
2
350 - Public administration & military science
2
410 - Linguistics
2
500 - Natural sciences & mathematics
2
780 - Music
2
791 - Public performances
2
949 - Other parts of Europe
2
179 - Other ethical norms
1
193 - Philosophy of Germany & Austria
1
296 - Judaism
1
325 - International migration & colonization
1
327 - International relations
1
328 - The legislative process
1
338 - Production
1
341 - Law of nations
1
345 - Criminal law
1
351 - Public administration
1
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