Classification
320 - Political science
330 - Economics
5
363 - Other social problems & services
333 - Economics of land & energy
4
630 - Agriculture & related technologies
3
600 - Technology
2
620 - Engineering & allied operations
2
340 - Law
1
551 - Geology, hydrology & meteorology
1
581 - Specific topics in natural history
1
700 - The arts; fine & decorative arts
1