Classification
305 - Social groups
424
362 - Social welfare problems & services
306
306 - Culture & institutions
287
355 - Military science
284
338 - Production
260
363 - Other social problems & services
244
320 - Political science
224
327 - International relations
166
331 - Labor economics
155
330 - Economics
149
303 - Social processes
148
791 - Public performances
144
972 - Middle America; Mexico
127
370 - Education
116
371 - Schools & their activities; special education
116
333 - Economics of land & energy
107
378 - Higher education
97
304 - Factors affecting social behavior
94
302 - Social interaction
93
307 - Communities
91
809 - History, description & criticism
87
301 - Sociology & anthropology
77
940 - History of Europe
72
341 - Law of nations
70
808 - Rhetoric & collections of literature
70
358 - Air & other specialized forces
66
933 - Palestine to 70
65
297 - Islam, Babism & Bahai Faith
64
300 - Social sciences
63
616 - Diseases
63
296 - Judaism
62
658 - General management
58
324 - The political process
57
340 - Law
57
323 - Civil & political rights
54
956 - Middle East (Near East)
52
895 - Literatures of East & Southeast Asia
51
346 - Private law
50
811 - American poetry in English
50
813 - American fiction in English
50
332 - Financial economics
49
364 - Criminology
49
001 - Knowledge
47
973 - United States
47
342 - Constitutional & administrative law
46
361 - Social problems & social welfare in general
46
325 - International migration & colonization
45
379 - Public policy issues in education
45
610 - Medicine & health
44
780 - Music
44
more ...