Classification
300 - Social sciences
330 - Economics
13
900 - History & geography
12
320 - Political science
10
301 - Sociology & anthropology
6
200 - Religion
5
304 - Factors affecting social behavior
4
380 - Commerce, communications & transportation
4
700 - The arts; fine & decorative arts
4
630 - Agriculture & related technologies
3
100 - Philosophy & psychology
2
333 - Economics of land & energy
2
340 - Law
2
370 - Education
2
600 - Technology
2
610 - Medicine & health
2
000 - Computer science, information & general works
1
140 - Specific philosophical schools
1
302 - Social interaction
1
361 - Social problems & social welfare in general
1
363 - Other social problems & services
1
400 - Language
1
410 - Linguistics
1
500 - Natural sciences & mathematics
1
650 - Management & auxiliary services
1
657 - Accounting
1
720 - Architecture
1
800 - Literature & rhetoric
1