Classification
320 - Political science
1,082
333 - Economics of land & energy
1,082
330 - Economics
399
363 - Other social problems & services
174
304 - Factors affecting social behavior
121
610 - Medicine & health
121
370 - Education
67
380 - Commerce, communications & transportation
65
630 - Agriculture & related technologies
53
600 - Technology
42
336 - Public finance
20