Classification
330 - Economics
320 - Political science
73
900 - History & geography
16
340 - Law
7
576 - Genetics & evolution
7
700 - The arts; fine & decorative arts
6
100 - Philosophy & psychology
4
370 - Education
3
800 - Literature & rhetoric
3
140 - Specific philosophical schools
2
200 - Religion
2
300 - Social sciences
2
332 - Financial economics
2
302 - Social interaction
1
339 - Macroeconomics & related topics
1
380 - Commerce, communications & transportation
1
500 - Natural sciences & mathematics
1
658 - General management
1