Classification
306 - Culture & institutions
769
300 - Social sciences
403
900 - History & geography
345
320 - Political science
274
301 - Sociology & anthropology
255
700 - The arts; fine & decorative arts
226
302 - Social interaction
210
800 - Literature & rhetoric
193
304 - Factors affecting social behavior
151
305 - Social groups
128
330 - Economics
126
100 - Philosophy & psychology
124
791 - Public performances
113
140 - Specific philosophical schools
105
200 - Religion
86
370 - Education
80
658 - General management
69
000 - Computer science, information & general works
65
780 - Music
63
610 - Medicine & health
60
380 - Commerce, communications & transportation
59
600 - Technology
58
338 - Production
54
340 - Law
53
400 - Language
48
333 - Economics of land & energy
43
363 - Other social problems & services
43
410 - Linguistics
41
303 - Social processes
38
809 - History, description & criticism
36
930 - History of ancient world to ca. 499
36
170 - Ethics
30
720 - Architecture
29
327 - International relations
26
307 - Communities
23
500 - Natural sciences & mathematics
23
331 - Labor economics
22
620 - Engineering & allied operations
22
297 - Islam, Babism & Bahai Faith
20
361 - Social problems & social welfare in general
19
150 - Psychology
17
910 - Geography & travel
17
384 - Communications; telecommunication
16
551 - Geology, hydrology & meteorology
14
630 - Agriculture & related technologies
14
362 - Social welfare problems & services
13
418 - Standard usage & applied linguistics
13
581 - Specific topics in natural history
13
770 - Photography, photographs & computer art
13
155 - Differential & developmental psychology
12
more ...