Classification
330 - Economics
15
320 - Political science
7
333 - Economics of land & energy
7
300 - Social sciences
5
658 - General management
5
600 - Technology
4
700 - The arts; fine & decorative arts
4
000 - Computer science, information & general works
3
338 - Production
3
363 - Other social problems & services
3
380 - Commerce, communications & transportation
3
900 - History & geography
3
302 - Social interaction
2
340 - Law
2
620 - Engineering & allied operations
2
720 - Architecture
2
331 - Labor economics
1
336 - Public finance
1
350 - Public administration & military science
1
500 - Natural sciences & mathematics
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
581 - Specific topics in natural history
1
657 - Accounting
1
670 - Manufacturing
1