Classification
301 - Sociology & anthropology
3,605
306 - Culture & institutions
3,315
300 - Social sciences
2,981
320 - Political science
1,749
305 - Social groups
1,632
304 - Factors affecting social behavior
1,257
302 - Social interaction
930
330 - Economics
881
370 - Education
729
900 - History & geography
532
307 - Communities
472
658 - General management
411
610 - Medicine & health
397
100 - Philosophy & psychology
381
333 - Economics of land & energy
356
700 - The arts; fine & decorative arts
354
303 - Social processes
351
361 - Social problems & social welfare in general
346
340 - Law
336
364 - Criminology
298
363 - Other social problems & services
269
140 - Specific philosophical schools
251
200 - Religion
245
600 - Technology
245
338 - Production
235
327 - International relations
188
006 - Special computer methods
164
150 - Psychology
160
170 - Ethics
160
155 - Differential & developmental psychology
155
616 - Diseases
144
380 - Commerce, communications & transportation
142
613 - Personal health & safety
129
500 - Natural sciences & mathematics
123
331 - Labor economics
119
378 - Higher education
114
000 - Computer science, information & general works
113
620 - Engineering & allied operations
111
371 - Schools & their activities; special education
106
614 - Incidence & prevention of disease
105
501 - Philosophy & theory
99
800 - Literature & rhetoric
99
004 - Data processing & computer science
96
551 - Geology, hydrology & meteorology
93
297 - Islam, Babism & Bahai Faith
91
519 - Probabilities & applied mathematics
91
621 - Applied physics
91
005 - Computer programming, programs & data
87
910 - Geography & travel
86
530 - Physics
82
more ...