Classification
000 - Computer science, information & general works
1
100 - Philosophy & psychology
120 - Epistemology, causation & humankind
1
200 - Religion
2
300 - Social sciences
2
301 - Sociology & anthropology
2
320 - Political science
3
330 - Economics
333 - Economics of land & energy
2
363 - Other social problems & services
1
370 - Education
1
400 - Language
1
410 - Linguistics
1
600 - Technology
1
610 - Medicine & health
1
700 - The arts; fine & decorative arts
4
800 - Literature & rhetoric
900 - History & geography