Classification
320 - Political science
1,158
333 - Economics of land & energy
1,158
330 - Economics
437
363 - Other social problems & services
190
304 - Factors affecting social behavior
127
610 - Medicine & health
126
380 - Commerce, communications & transportation
71
370 - Education
70
630 - Agriculture & related technologies
56
600 - Technology
50
336 - Public finance
20
700 - The arts; fine & decorative arts
9
140 - Specific philosophical schools
7
900 - History & geography
7
300 - Social sciences
5
338 - Production
5
000 - Computer science, information & general works
3
551 - Geology, hydrology & meteorology
3
620 - Engineering & allied operations
3
301 - Sociology & anthropology
2
658 - General management
2
720 - Architecture
2
800 - Literature & rhetoric
2
170 - Ethics
1
302 - Social interaction
1
350 - Public administration & military science
1
364 - Criminology
1
576 - Genetics & evolution
1
581 - Specific topics in natural history
1
657 - Accounting
1
919 - Geography of & travel in other areas
1