Classification
340 - Law
250
300 - Social sciences
196
320 - Political science
168
330 - Economics
153
900 - History & geography
61
100 - Philosophy & psychology
57
361 - Social problems & social welfare in general
48
370 - Education
48
700 - The arts; fine & decorative arts
40
610 - Medicine & health
36
200 - Religion
25
304 - Factors affecting social behavior
25
301 - Sociology & anthropology
18
364 - Criminology
14
360 - Social problems & services; associations
13
380 - Commerce, communications & transportation
10
600 - Technology
9
140 - Specific philosophical schools
7
333 - Economics of land & energy
6
363 - Other social problems & services
6
000 - Computer science, information & general works
5
170 - Ethics
5
297 - Islam, Babism & Bahai Faith
5
658 - General management
4
940 - History of Europe
4
305 - Social groups
3
800 - Literature & rhetoric
3
306 - Culture & institutions
2
331 - Labor economics
2
500 - Natural sciences & mathematics
2
576 - Genetics & evolution
2
581 - Specific topics in natural history
2
630 - Agriculture & related technologies
2
650 - Management & auxiliary services
2
770 - Photography, photographs & computer art
2
943 - Central Europe; Germany
2
158 - Applied psychology
1
160 - Logic
1
174 - Occupational ethics
1
261 - Social theology
1
296 - Judaism
1
338 - Production
1
350 - Public administration & military science
1
362 - Social welfare problems & services
1
388 - Transportation; ground transportation
1
400 - Language
1
720 - Architecture
1
780 - Music
1
791 - Public performances
1
909 - World history
1