Classification
320 - Political science
330 - Economics
600
370 - Education
200 - Religion
46
300 - Social sciences
30
900 - History & geography
26
340 - Law
24
630 - Agriculture & related technologies
17
700 - The arts; fine & decorative arts
17
160 - Logic
12
610 - Medicine & health
7
170 - Ethics
6
400 - Language
4
100 - Philosophy & psychology
3
800 - Literature & rhetoric
3
500 - Natural sciences & mathematics
1
576 - Genetics & evolution
1
600 - Technology
1