Classification
330 - Economics
320 - Political science
246
900 - History & geography
50
340 - Law
25
300 - Social sciences
19
700 - The arts; fine & decorative arts
15
100 - Philosophy & psychology
6
576 - Genetics & evolution
6
630 - Agriculture & related technologies
6
370 - Education
4
200 - Religion
2
160 - Logic
1