Classification
300 - Social sciences
320 - Political science
330 - Economics
1,871
630 - Agriculture & related technologies
241
900 - History & geography
219
340 - Law
218
576 - Genetics & evolution
42
700 - The arts; fine & decorative arts
25
100 - Philosophy & psychology
8
370 - Education
6
200 - Religion
5
800 - Literature & rhetoric
5
160 - Logic
3
170 - Ethics
3
000 - Computer science, information & general works
2
140 - Specific philosophical schools
1
331 - Labor economics
1
333 - Economics of land & energy
1
337 - International economics
1
343 - Military, tax, trade & industrial law
1
350 - Public administration & military science
1
610 - Medicine & health
1