Classification
301 - Sociology & anthropology
3,497
306 - Culture & institutions
3,237
300 - Social sciences
3,055
320 - Political science
1,712
305 - Social groups
1,573
304 - Factors affecting social behavior
1,211
302 - Social interaction
920
330 - Economics
879
370 - Education
710
900 - History & geography
529
307 - Communities
465
610 - Medicine & health
394
658 - General management
394
100 - Philosophy & psychology
385
700 - The arts; fine & decorative arts
352
303 - Social processes
343
333 - Economics of land & energy
340
361 - Social problems & social welfare in general
335
340 - Law
331
364 - Criminology
280
363 - Other social problems & services
265
140 - Specific philosophical schools
251
600 - Technology
245
200 - Religion
242
338 - Production
230
327 - International relations
173
006 - Special computer methods
162
170 - Ethics
162
155 - Differential & developmental psychology
155
150 - Psychology
150
616 - Diseases
147
380 - Commerce, communications & transportation
141
613 - Personal health & safety
123
500 - Natural sciences & mathematics
120
331 - Labor economics
115
000 - Computer science, information & general works
114
620 - Engineering & allied operations
112
378 - Higher education
109
800 - Literature & rhetoric
105
614 - Incidence & prevention of disease
103
501 - Philosophy & theory
99
004 - Data processing & computer science
96
371 - Schools & their activities; special education
95
551 - Geology, hydrology & meteorology
93
297 - Islam, Babism & Bahai Faith
89
519 - Probabilities & applied mathematics
88
005 - Computer programming, programs & data
87
910 - Geography & travel
84
070 - News media, journalism & publishing
81
530 - Physics
81
more ...