Classification
301 - Sociology & anthropology
900 - History & geography
36
300 - Social sciences
21
200 - Religion
11
320 - Political science
9
700 - The arts; fine & decorative arts
6
100 - Philosophy & psychology
5
340 - Law
5
140 - Specific philosophical schools
4
304 - Factors affecting social behavior
4
800 - Literature & rhetoric
3
170 - Ethics
2
307 - Communities
1
330 - Economics
1
363 - Other social problems & services
1
370 - Education
1
380 - Commerce, communications & transportation
1
398 - Folklore
1
400 - Language
1
410 - Linguistics
1
581 - Specific topics in natural history
1
600 - Technology
1
610 - Medicine & health
1
630 - Agriculture & related technologies
1
770 - Photography, photographs & computer art
1
780 - Music
1
973 - United States
1
980 - History of South America
1