Classification
330 - Economics
4
350 - Public administration & military science
363 - Other social problems & services
4
600 - Technology
3
620 - Engineering & allied operations
3
320 - Political science
2
333 - Economics of land & energy
2
551 - Geology, hydrology & meteorology
2
300 - Social sciences
1
630 - Agriculture & related technologies
1
700 - The arts; fine & decorative arts
1