Classification
100 - Philosophy & psychology
300 - Social sciences
2
320 - Political science
2
350 - Public administration & military science
900 - History & geography
301 - Sociology & anthropology
1
330 - Economics
1
333 - Economics of land & energy
1
340 - Law
1
363 - Other social problems & services
1
576 - Genetics & evolution
1
581 - Specific topics in natural history
1
600 - Technology
1
610 - Medicine & health
1