Classification
140 - Specific philosophical schools
300 - Social sciences
301 - Sociology & anthropology
700 - The arts; fine & decorative arts
900 - History & geography
7
363 - Other social problems & services
6
320 - Political science
5
304 - Factors affecting social behavior
4
330 - Economics
4
333 - Economics of land & energy
4
370 - Education
4
720 - Architecture
4
340 - Law
3
610 - Medicine & health
3
800 - Literature & rhetoric
3
000 - Computer science, information & general works
2
100 - Philosophy & psychology
2
380 - Commerce, communications & transportation
2
410 - Linguistics
2
620 - Engineering & allied operations
2
200 - Religion
1
297 - Islam, Babism & Bahai Faith
1
361 - Social problems & social welfare in general
1
400 - Language
1
600 - Technology
1
630 - Agriculture & related technologies
1