Classification
700 - The arts; fine & decorative arts
320 - Political science
6
333 - Economics of land & energy
6
000 - Computer science, information & general works
5
330 - Economics
5
610 - Medicine & health
4
363 - Other social problems & services
3
620 - Engineering & allied operations
3
900 - History & geography
3
140 - Specific philosophical schools
2
380 - Commerce, communications & transportation
2
600 - Technology
2
630 - Agriculture & related technologies
2
658 - General management
2
100 - Philosophy & psychology
1
304 - Factors affecting social behavior
1
530 - Physics
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
580 - Plants (Botany)
1
581 - Specific topics in natural history
1
657 - Accounting
1
720 - Architecture
1