Classification
330 - Economics
91
338 - Production
11
339 - Macroeconomics & related topics
11
320 - Political science
8
900 - History & geography
7
327 - International relations
3
331 - Labor economics
3
336 - Public finance
3
337 - International economics
3
540 - Chemistry & allied sciences
3
940 - History of Europe
3
301 - Sociology & anthropology
2
333 - Economics of land & energy
2
501 - Philosophy & theory
2
658 - General management
2
947 - Eastern Europe; Russia
2
100 - Philosophy & psychology
1
120 - Epistemology, causation & humankind
1
300 - Social sciences
1
343 - Military, tax, trade & industrial law
1
551 - Geology, hydrology & meteorology
1
612 - Human physiology
1
808 - Rhetoric & collections of literature
1
941 - British Isles
1