Classification
300 - Social sciences
301 - Sociology & anthropology
333 - Economics of land & energy
576 - Genetics & evolution
900 - History & geography
2
000 - Computer science, information & general works
1
100 - Philosophy & psychology
1
320 - Political science
1
330 - Economics
1
360 - Social problems & services; associations
1
361 - Social problems & social welfare in general
1
363 - Other social problems & services
1
364 - Criminology
1
581 - Specific topics in natural history
1
610 - Medicine & health
1