Classification
100 - Philosophy & psychology
140 - Specific philosophical schools
300 - Social sciences
576 - Genetics & evolution
301 - Sociology & anthropology
3
370 - Education
3
900 - History & geography
3
320 - Political science
2
330 - Economics
2
600 - Technology
2
620 - Engineering & allied operations
2
333 - Economics of land & energy
1
340 - Law
1
400 - Language
1
410 - Linguistics
1
630 - Agriculture & related technologies
1
700 - The arts; fine & decorative arts
1
780 - Music
1