Classification
320 - Political science
20
330 - Economics
10
301 - Sociology & anthropology
7
331 - Labor economics
4
361 - Social problems & social welfare in general
4
300 - Social sciences
3
337 - International economics
3
338 - Production
3
336 - Public finance
2
339 - Macroeconomics & related topics
2
613 - Personal health & safety
2
614 - Incidence & prevention of disease
2
650 - Management & auxiliary services
2
006 - Special computer methods
1
304 - Factors affecting social behavior
1
305 - Social groups
1
306 - Culture & institutions
1
327 - International relations
1
332 - Financial economics
1
340 - Law
1
341 - Law of nations
1
501 - Philosophy & theory
1
610 - Medicine & health
1
616 - Diseases
1
618 - Gynecology, obstetrics, pediatrics & geriatrics
1
658 - General management
1
910 - Geography & travel
1
941 - British Isles
1
973 - United States
1