Classification
301 - Sociology & anthropology
300 - Social sciences
102
900 - History & geography
52
320 - Political science
45
200 - Religion
23
304 - Factors affecting social behavior
20
700 - The arts; fine & decorative arts
20
140 - Specific philosophical schools
16
330 - Economics
16
400 - Language
16
340 - Law
11
100 - Philosophy & psychology
10
780 - Music
9
410 - Linguistics
8
333 - Economics of land & energy
7
363 - Other social problems & services
7
380 - Commerce, communications & transportation
7
800 - Literature & rhetoric
6
000 - Computer science, information & general works
5
170 - Ethics
5
350 - Public administration & military science
5
370 - Education
5
600 - Technology
5
610 - Medicine & health
5
297 - Islam, Babism & Bahai Faith
3
361 - Social problems & social welfare in general
3
398 - Folklore
3
581 - Specific topics in natural history
3
360 - Social problems & services; associations
2
364 - Criminology
2
520 - Astronomy & allied sciences
2
658 - General management
2
120 - Epistemology, causation & humankind
1
303 - Social processes
1
336 - Public finance
1
500 - Natural sciences & mathematics
1
530 - Physics
1
551 - Geology, hydrology & meteorology
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1
657 - Accounting
1