Classification
301 - Sociology & anthropology
300 - Social sciences
32
900 - History & geography
27
780 - Music
14
700 - The arts; fine & decorative arts
13
200 - Religion
12
140 - Specific philosophical schools
10
320 - Political science
10
363 - Other social problems & services
7
340 - Law
6
400 - Language
5
610 - Medicine & health
5
380 - Commerce, communications & transportation
4
297 - Islam, Babism & Bahai Faith
3
600 - Technology
3
630 - Agriculture & related technologies
3
800 - Literature & rhetoric
3
000 - Computer science, information & general works
2
170 - Ethics
2
304 - Factors affecting social behavior
2
330 - Economics
2
333 - Economics of land & energy
2
361 - Social problems & social welfare in general
2
370 - Education
2
398 - Folklore
2
551 - Geology, hydrology & meteorology
2
581 - Specific topics in natural history
2
100 - Philosophy & psychology
1
120 - Epistemology, causation & humankind
1
160 - Logic
1
360 - Social problems & services; associations
1
410 - Linguistics
1
576 - Genetics & evolution
1
720 - Architecture
1