Classification
330 - Economics
85
339 - Macroeconomics & related topics
7
333 - Economics of land & energy
5
700 - The arts; fine & decorative arts
3
000 - Computer science, information & general works
2
140 - Specific philosophical schools
2
363 - Other social problems & services
2
551 - Geology, hydrology & meteorology
2
658 - General management
2
304 - Factors affecting social behavior
1
320 - Political science
1
332 - Financial economics
1
530 - Physics
1
614 - Incidence & prevention of disease
1
630 - Agriculture & related technologies
1
900 - History & geography
1