Classification
100 - Philosophy & psychology
120 - Epistemology, causation & humankind
320 - Political science
900 - History & geography
170 - Ethics
3
200 - Religion
3
340 - Law
3
000 - Computer science, information & general works
2
300 - Social sciences
2
333 - Economics of land & energy
2
400 - Language
2
301 - Sociology & anthropology
1
330 - Economics
1
363 - Other social problems & services
1
370 - Education
1
410 - Linguistics
1
576 - Genetics & evolution
1
600 - Technology
1
610 - Medicine & health
1
700 - The arts; fine & decorative arts
1
800 - Literature & rhetoric
1
920 - Biography, genealogy & insignia
1