Classification
320 - Political science
300 - Social sciences
75
900 - History & geography
47
100 - Philosophy & psychology
38
330 - Economics
34
340 - Law
31
700 - The arts; fine & decorative arts
29
370 - Education
15
301 - Sociology & anthropology
11
200 - Religion
10
304 - Factors affecting social behavior
10
363 - Other social problems & services
10
140 - Specific philosophical schools
9
170 - Ethics
9
600 - Technology
9
610 - Medicine & health
9
380 - Commerce, communications & transportation
8
000 - Computer science, information & general works
5
576 - Genetics & evolution
5
333 - Economics of land & energy
4
780 - Music
4
297 - Islam, Babism & Bahai Faith
3
361 - Social problems & social welfare in general
3
400 - Language
3
581 - Specific topics in natural history
3
720 - Architecture
3
120 - Epistemology, causation & humankind
2
551 - Geology, hydrology & meteorology
2
620 - Engineering & allied operations
2
800 - Literature & rhetoric
2
261 - Social theology
1
270 - History of Christianity & Christian church
1
303 - Social processes
1
364 - Criminology
1
382 - International commerce
1
500 - Natural sciences & mathematics
1
630 - Agriculture & related technologies
1
842 - French drama
1
920 - Biography, genealogy & insignia
1