Classification
100 - Philosophy & psychology
900 - History & geography
140 - Specific philosophical schools
2
320 - Political science
2
300 - Social sciences
1
301 - Sociology & anthropology
1
330 - Economics
1
333 - Economics of land & energy
1
370 - Education
1
600 - Technology
1
610 - Medicine & health
1
700 - The arts; fine & decorative arts
1
780 - Music
1
800 - Literature & rhetoric
1