Classification
300 - Social sciences
4,703
001 - Knowledge
4,065
140 - Specific philosophical schools
2,853
658 - General management
2,265
004 - Data processing & computer science
1,900
005 - Computer programming, programs & data
1,797
304 - Factors affecting social behavior
1,572
330 - Economics
1,400
610 - Medicine & health
1,172
006 - Special computer methods
1,045
612 - Human physiology
1,015
700 - The arts; fine & decorative arts
744
900 - History & geography
682
320 - Political science
643
333 - Economics of land & energy
639
616 - Diseases
536
620 - Engineering & allied operations
530
000 - Computer science, information & general works
503
363 - Other social problems & services
479
600 - Technology
422
611 - Human anatomy, cytology & histology
405
340 - Law
398
570 - Life sciences; biology
373
341 - Law of nations
365
306 - Culture & institutions
339
301 - Sociology & anthropology
315
599 - Mammals
307
621 - Applied physics
304
100 - Philosophy & psychology
298
331 - Labor economics
296
370 - Education
277
650 - Management & auxiliary services
266
380 - Commerce, communications & transportation
260
500 - Natural sciences & mathematics
258
158 - Applied psychology
241
910 - Geography & travel
237
571 - Physiology & related subjects
229
170 - Ethics
227
519 - Probabilities & applied mathematics
213
551 - Geology, hydrology & meteorology
208
305 - Social groups
190
615 - Pharmacology & therapeutics
190
800 - Literature & rhetoric
188
303 - Social processes
183
200 - Religion
181
302 - Social interaction
168
745 - Decorative arts
166
580 - Plants (Botany)
165
576 - Genetics & evolution
161
338 - Production
150
more ...