Classification
301 - Sociology & anthropology
780 - Music
900 - History & geography
100 - Philosophy & psychology
6
800 - Literature & rhetoric
5
140 - Specific philosophical schools
4
200 - Religion
4
300 - Social sciences
4
400 - Language
4
410 - Linguistics
4
700 - The arts; fine & decorative arts
4
320 - Political science
3
363 - Other social problems & services
2
370 - Education
2
581 - Specific topics in natural history
2
600 - Technology
2
000 - Computer science, information & general works
1
330 - Economics
1
333 - Economics of land & energy
1
380 - Commerce, communications & transportation
1
398 - Folklore
1
576 - Genetics & evolution
1
590 - Animals (Zoology)
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1
791 - Public performances
1