Classification
330 - Economics
320 - Political science
444
300 - Social sciences
74
370 - Education
60
340 - Law
25
900 - History & geography
22
610 - Medicine & health
12
200 - Religion
6
630 - Agriculture & related technologies
6
700 - The arts; fine & decorative arts
6
720 - Architecture
6
160 - Logic
2
576 - Genetics & evolution
2
140 - Specific philosophical schools
1
170 - Ethics
1
331 - Labor economics
1
600 - Technology
1
658 - General management
1
780 - Music
1
800 - Literature & rhetoric
1