Classification
003 - Systems
1
006 - Special computer methods
1
150 - Psychology
1
152 - Perception, movement, emotions & drives
1
155 - Differential & developmental psychology
1
190 - Modern western philosophy
1
300 - Social sciences
2
301 - Sociology & anthropology
5
302 - Social interaction
5
303 - Social processes
24
304 - Factors affecting social behavior
2
305 - Social groups
6
306 - Culture & institutions
11
320 - Political science
47
322 - Relation of state to organized groups
1
323 - Civil & political rights
2
324 - The political process
1
325 - International migration & colonization
1
327 - International relations
73
338 - Production
5
339 - Macroeconomics & related topics
1
341 - Law of nations
1
351 - Public administration
3
355 - Military science
3
363 - Other social problems & services
31
364 - Criminology
10
370 - Education
2
551 - Geology, hydrology & meteorology
1
610 - Medicine & health
2
613 - Personal health & safety
1
614 - Incidence & prevention of disease
2
616 - Diseases
1
621 - Applied physics
1
629 - Other branches of engineering
1
909 - World history
1
940 - History of Europe
3
941 - British Isles
1
945 - Italian Peninsula & adjacent islands
1
960 - History of Africa
1