Classification
330 - Economics
333 - Economics of land & energy
630 - Agriculture & related technologies
700 - The arts; fine & decorative arts
363 - Other social problems & services
5
000 - Computer science, information & general works
4
610 - Medicine & health
4
140 - Specific philosophical schools
3
320 - Political science
3
551 - Geology, hydrology & meteorology
3
900 - History & geography
3
658 - General management
2
301 - Sociology & anthropology
1
380 - Commerce, communications & transportation
1
600 - Technology
1
620 - Engineering & allied operations
1
657 - Accounting
1