Classification
300 - Social sciences
4,997
001 - Knowledge
4,350
330 - Economics
2,855
140 - Specific philosophical schools
2,841
658 - General management
2,325
004 - Data processing & computer science
1,969
005 - Computer programming, programs & data
1,883
304 - Factors affecting social behavior
1,654
610 - Medicine & health
1,171
006 - Special computer methods
1,050
612 - Human physiology
1,023
700 - The arts; fine & decorative arts
743
900 - History & geography
687
333 - Economics of land & energy
659
320 - Political science
656
620 - Engineering & allied operations
551
616 - Diseases
508
000 - Computer science, information & general works
502
363 - Other social problems & services
479
600 - Technology
423
340 - Law
410
570 - Life sciences; biology
383
341 - Law of nations
377
306 - Culture & institutions
352
301 - Sociology & anthropology
318
621 - Applied physics
310
100 - Philosophy & psychology
297
331 - Labor economics
296
370 - Education
282
650 - Management & auxiliary services
270
500 - Natural sciences & mathematics
268
380 - Commerce, communications & transportation
261
611 - Human anatomy, cytology & histology
256
158 - Applied psychology
246
910 - Geography & travel
244
571 - Physiology & related subjects
225
170 - Ethics
224
519 - Probabilities & applied mathematics
213
551 - Geology, hydrology & meteorology
213
305 - Social groups
205
599 - Mammals
197
303 - Social processes
189
800 - Literature & rhetoric
188
615 - Pharmacology & therapeutics
187
200 - Religion
182
302 - Social interaction
169
580 - Plants (Botany)
165
371 - Schools & their activities; special education
162
576 - Genetics & evolution
162
745 - Decorative arts
159
more ...