Classification
140 - Specific philosophical schools
300 - Social sciences
320 - Political science
400 - Language
700 - The arts; fine & decorative arts
2
100 - Philosophy & psychology
1
200 - Religion
1
330 - Economics
1
333 - Economics of land & energy
1
410 - Linguistics
1
780 - Music
1
800 - Literature & rhetoric
1
900 - History & geography
1