Classification
300 - Social sciences
320 - Political science
5,862
330 - Economics
5,862
900 - History & geography
1,018
630 - Agriculture & related technologies
824
576 - Genetics & evolution
437
340 - Law
367
700 - The arts; fine & decorative arts
55
370 - Education
30
170 - Ethics
27
100 - Philosophy & psychology
23
200 - Religion
17
500 - Natural sciences & mathematics
12
800 - Literature & rhetoric
11
140 - Specific philosophical schools
8
160 - Logic
8
610 - Medicine & health
7
400 - Language
3
336 - Public finance
2
380 - Commerce, communications & transportation
2
550 - Earth sciences
2
600 - Technology
2
720 - Architecture
2
301 - Sociology & anthropology
1
331 - Labor economics
1
335 - Socialism & related systems
1
337 - International economics
1
343 - Military, tax, trade & industrial law
1