Classification
100 - Philosophy & psychology
3
576 - Genetics & evolution
000 - Computer science, information & general works
2
301 - Sociology & anthropology
2
300 - Social sciences
1
333 - Economics of land & energy
1
400 - Language
1
581 - Specific topics in natural history
1
600 - Technology
1
700 - The arts; fine & decorative arts
1
900 - History & geography
1