Classification
305 - Social groups
34
003 - Systems
20
320 - Political science
16
300 - Social sciences
15
306 - Culture & institutions
13
900 - History & geography
9
304 - Factors affecting social behavior
7
700 - The arts; fine & decorative arts
6
800 - Literature & rhetoric
6
140 - Specific philosophical schools
4
301 - Sociology & anthropology
4
330 - Economics
4
378 - Higher education
4
363 - Other social problems & services
3
370 - Education
3
613 - Personal health & safety
3
780 - Music
3
070 - News media, journalism & publishing
2
100 - Philosophy & psychology
2
297 - Islam, Babism & Bahai Faith
2
323 - Civil & political rights
2
333 - Economics of land & energy
2
418 - Standard usage & applied linguistics
2
600 - Technology
2
940 - History of Europe
2
941 - British Isles
2
001 - Knowledge
1
006 - Special computer methods
1
007 - [Unassigned]
1
109 - Historical & collected persons treatment
1
113 - Cosmology
1
141 - Idealism & related systems
1
142 - Critical philosophy
1
146 - Naturalism & related systems
1
150 - Psychology
1
155 - Differential & developmental psychology
1
200 - Religion
1
230 - Christianity & Christian theology
1
302 - Social interaction
1
303 - Social processes
1
327 - International relations
1
338 - Production
1
340 - Law
1
341 - Law of nations
1
362 - Social welfare problems & services
1
364 - Criminology
1
380 - Commerce, communications & transportation
1
509 - Historical, geographic & persons treatment
1
576 - Genetics & evolution
1
581 - Specific topics in natural history
1
more ...