Classification
320 - Political science
166
900 - History & geography
67
100 - Philosophy & psychology
26
300 - Social sciences
25
700 - The arts; fine & decorative arts
19
330 - Economics
17
340 - Law
12
200 - Religion
10
140 - Specific philosophical schools
7
297 - Islam, Babism & Bahai Faith
7
335 - Socialism & related systems
7
321 - Systems of governments & states
6
333 - Economics of land & energy
6
363 - Other social problems & services
6
304 - Factors affecting social behavior
5
324 - The political process
4
400 - Language
4
576 - Genetics & evolution
4
301 - Sociology & anthropology
3
370 - Education
3
600 - Technology
3
791 - Public performances
3
947 - Eastern Europe; Russia
3
303 - Social processes
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
380 - Commerce, communications & transportation
2
410 - Linguistics
2
581 - Specific topics in natural history
2
780 - Music
2
800 - Literature & rhetoric
2
949 - Other parts of Europe
2
981 - Brazil
2
000 - Computer science, information & general works
1
170 - Ethics
1
179 - Other ethical norms
1
193 - Philosophy of Germany & Austria
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
414 - Phonology & phonetics
1
500 - Natural sciences & mathematics
1
530 - Physics
1
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