Classification
320 - Political science
330 - Economics
14
333 - Economics of land & energy
11
363 - Other social problems & services
11
400 - Language
3
900 - History & geography
3
340 - Law
2
380 - Commerce, communications & transportation
2
304 - Factors affecting social behavior
1
336 - Public finance
1
370 - Education
1
410 - Linguistics
1
610 - Medicine & health
1
630 - Agriculture & related technologies
1
700 - The arts; fine & decorative arts
1
800 - Literature & rhetoric
1