Classification
300 - Social sciences
362
320 - Political science
46
370 - Education
42
900 - History & geography
39
301 - Sociology & anthropology
35
700 - The arts; fine & decorative arts
24
140 - Specific philosophical schools
23
330 - Economics
22
100 - Philosophy & psychology
17
200 - Religion
15
380 - Commerce, communications & transportation
15
610 - Medicine & health
13
363 - Other social problems & services
11
333 - Economics of land & energy
10
361 - Social problems & social welfare in general
9
600 - Technology
9
000 - Computer science, information & general works
8
304 - Factors affecting social behavior
8
340 - Law
8
360 - Social problems & services; associations
7
500 - Natural sciences & mathematics
7
170 - Ethics
5
800 - Literature & rhetoric
5
364 - Criminology
4
400 - Language
4
658 - General management
4
297 - Islam, Babism & Bahai Faith
3
410 - Linguistics
3
350 - Public administration & military science
2
551 - Geology, hydrology & meteorology
2
581 - Specific topics in natural history
2
620 - Engineering & allied operations
2
630 - Agriculture & related technologies
2
720 - Architecture
2
780 - Music
2
004 - Data processing & computer science
1
176 - Ethics of sex & reproduction
1
398 - Folklore
1
530 - Physics
1
576 - Genetics & evolution
1
650 - Management & auxiliary services
1
657 - Accounting
1
745 - Decorative arts
1
770 - Photography, photographs & computer art
1
791 - Public performances
1