Classification
320 - Political science
615
900 - History & geography
411
330 - Economics
230
300 - Social sciences
190
306 - Culture & institutions
181
700 - The arts; fine & decorative arts
125
370 - Education
122
100 - Philosophy & psychology
111
301 - Sociology & anthropology
108
340 - Law
93
200 - Religion
89
800 - Literature & rhetoric
85
363 - Other social problems & services
82
305 - Social groups
78
333 - Economics of land & energy
72
338 - Production
66
658 - General management
65
304 - Factors affecting social behavior
64
327 - International relations
56
140 - Specific philosophical schools
49
410 - Linguistics
49
610 - Medicine & health
46
302 - Social interaction
45
400 - Language
44
418 - Standard usage & applied linguistics
44
791 - Public performances
42
930 - History of ancient world to ca. 499
42
380 - Commerce, communications & transportation
41
809 - History, description & criticism
34
170 - Ethics
33
303 - Social processes
33
371 - Schools & their activities; special education
29
500 - Natural sciences & mathematics
29
501 - Philosophy & theory
29
940 - History of Europe
29
297 - Islam, Babism & Bahai Faith
28
576 - Genetics & evolution
26
000 - Computer science, information & general works
25
324 - The political process
25
364 - Criminology
25
361 - Social problems & social welfare in general
24
600 - Technology
22
620 - Engineering & allied operations
22
006 - Special computer methods
21
331 - Labor economics
21
155 - Differential & developmental psychology
20
307 - Communities
20
150 - Psychology
19
342 - Constitutional & administrative law
18
379 - Public policy issues in education
18
more ...