Classification
170 - Ethics
320 - Political science
298
330 - Economics
298
300 - Social sciences
27
340 - Law
22
900 - History & geography
19
100 - Philosophy & psychology
18
400 - Language
17
200 - Religion
8
700 - The arts; fine & decorative arts
7
370 - Education
6
160 - Logic
4
630 - Agriculture & related technologies
1
800 - Literature & rhetoric
1