Classification
330 - Economics
63
320 - Political science
54
630 - Agriculture & related technologies
32
333 - Economics of land & energy
18
300 - Social sciences
6
340 - Law
5
634 - Orchards, fruits & forestry
5
301 - Sociology & anthropology
2
700 - The arts; fine & decorative arts
2
304 - Factors affecting social behavior
1
520 - Astronomy & allied sciences
1
577 - Ecology
1
620 - Engineering & allied operations
1
632 - Plant injuries, diseases & pests
1
658 - General management
1