Classification
300 - Social sciences
330 - Economics
123
320 - Political science
113
900 - History & geography
30
576 - Genetics & evolution
21
340 - Law
8
658 - General management
6
302 - Social interaction
5
630 - Agriculture & related technologies
5
332 - Financial economics
4
338 - Production
4
500 - Natural sciences & mathematics
4
670 - Manufacturing
4
350 - Public administration & military science
2
000 - Computer science, information & general works
1
170 - Ethics
1
200 - Religion
1
297 - Islam, Babism & Bahai Faith
1
368 - Insurance
1
581 - Specific topics in natural history
1
700 - The arts; fine & decorative arts
1