Classification
780 - Music
140 - Specific philosophical schools
4
900 - History & geography
4
370 - Education
3
610 - Medicine & health
3
700 - The arts; fine & decorative arts
3
301 - Sociology & anthropology
2
330 - Economics
2
400 - Language
2
410 - Linguistics
2
600 - Technology
2
620 - Engineering & allied operations
2
800 - Literature & rhetoric
2
000 - Computer science, information & general works
1
100 - Philosophy & psychology
1
300 - Social sciences
1
320 - Political science
1
360 - Social problems & services; associations
1
361 - Social problems & social welfare in general
1
363 - Other social problems & services
1
576 - Genetics & evolution
1
581 - Specific topics in natural history
1
630 - Agriculture & related technologies
1