Classification
320 - Political science
330 - Economics
396
340 - Law
68
300 - Social sciences
49
630 - Agriculture & related technologies
29
900 - History & geography
4
380 - Commerce, communications & transportation
3
700 - The arts; fine & decorative arts
3
333 - Economics of land & energy
2
370 - Education
2
600 - Technology
2
800 - Literature & rhetoric
2
140 - Specific philosophical schools
1
304 - Factors affecting social behavior
1
363 - Other social problems & services
1
610 - Medicine & health
1
658 - General management
1