Classification
320 - Political science
330 - Economics
333 - Economics of land & energy
340 - Law
363 - Other social problems & services
700 - The arts; fine & decorative arts
7
000 - Computer science, information & general works
6
140 - Specific philosophical schools
4
581 - Specific topics in natural history
4
630 - Agriculture & related technologies
4
300 - Social sciences
3
301 - Sociology & anthropology
3
610 - Medicine & health
3
900 - History & geography
3
200 - Religion
2
380 - Commerce, communications & transportation
2
410 - Linguistics
2
600 - Technology
2
100 - Philosophy & psychology
1
170 - Ethics
1
304 - Factors affecting social behavior
1
361 - Social problems & social welfare in general
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
580 - Plants (Botany)
1
658 - General management
1