Classification
320 - Political science
330 - Economics
175
900 - History & geography
92
700 - The arts; fine & decorative arts
62
300 - Social sciences
59
100 - Philosophy & psychology
54
340 - Law
37
140 - Specific philosophical schools
29
333 - Economics of land & energy
29
200 - Religion
24
370 - Education
19
170 - Ethics
18
576 - Genetics & evolution
12
000 - Computer science, information & general works
11
630 - Agriculture & related technologies
11
800 - Literature & rhetoric
11
301 - Sociology & anthropology
10
600 - Technology
10
297 - Islam, Babism & Bahai Faith
9
361 - Social problems & social welfare in general
9
363 - Other social problems & services
9
400 - Language
9
304 - Factors affecting social behavior
7
610 - Medicine & health
7
720 - Architecture
5
380 - Commerce, communications & transportation
4
120 - Epistemology, causation & humankind
3
360 - Social problems & services; associations
3
364 - Criminology
3
581 - Specific topics in natural history
3
770 - Photography, photographs & computer art
3
296 - Judaism
2
410 - Linguistics
2
551 - Geology, hydrology & meteorology
2
780 - Music
2
323 - Civil & political rights
1
336 - Public finance
1
347 - Civil procedure & courts
1
350 - Public administration & military science
1
530 - Physics
1
620 - Engineering & allied operations
1
920 - Biography, genealogy & insignia
1