Classification
000 - Computer science, information & general works
658 - General management
2,062
330 - Economics
1,463
700 - The arts; fine & decorative arts
1,407
600 - Technology
1,177
331 - Labor economics
1,036
500 - Natural sciences & mathematics
994
620 - Engineering & allied operations
979
333 - Economics of land & energy
976
610 - Medicine & health
794
363 - Other social problems & services
638
745 - Decorative arts
636
380 - Commerce, communications & transportation
620
900 - History & geography
478
580 - Plants (Botany)
462
140 - Specific philosophical schools
432
338 - Production
399
540 - Chemistry & allied sciences
374
576 - Genetics & evolution
342
770 - Photography, photographs & computer art
283
320 - Political science
281
384 - Communications; telecommunication
280
551 - Geology, hydrology & meteorology
264
530 - Physics
256
011 - Bibliographies
247
300 - Social sciences
239
302 - Social interaction
236
381 - Commerce
223
630 - Agriculture & related technologies
214
332 - Financial economics
211
340 - Law
189
370 - Education
188
374 - Adult education
183
720 - Architecture
152
400 - Language
148
581 - Specific topics in natural history
140
414 - Phonology & phonetics
137
650 - Management & auxiliary services
135
800 - Literature & rhetoric
130
100 - Philosophy & psychology
120
153 - Mental processes & intelligence
110
006 - Special computer methods
107
410 - Linguistics
94
670 - Manufacturing
90
304 - Factors affecting social behavior
83
519 - Probabilities & applied mathematics
71
612 - Human physiology
70
158 - Applied psychology
65
170 - Ethics
56
791 - Public performances
54
more ...