Classification
100 - Philosophy & psychology
170 - Ethics
300 - Social sciences
301 - Sociology & anthropology
200 - Religion
4
320 - Political science
4
140 - Specific philosophical schools
3
330 - Economics
2
340 - Law
2
581 - Specific topics in natural history
2
600 - Technology
2
900 - History & geography
2
000 - Computer science, information & general works
1
304 - Factors affecting social behavior
1
333 - Economics of land & energy
1
360 - Social problems & services; associations
1
361 - Social problems & social welfare in general
1
363 - Other social problems & services
1
364 - Criminology
1
370 - Education
1
610 - Medicine & health
1
700 - The arts; fine & decorative arts
1