Classification
330 - Economics
2,446
155 - Differential & developmental psychology
479
658 - General management
418
610 - Medicine & health
386
158 - Applied psychology
378
340 - Law
346
332 - Financial economics
311
320 - Political science
273
339 - Macroeconomics & related topics
261
650 - Management & auxiliary services
218
370 - Education
206
302 - Social interaction
199
004 - Data processing & computer science
190
700 - The arts; fine & decorative arts
186
900 - History & geography
173
150 - Psychology
170
300 - Social sciences
169
333 - Economics of land & energy
157
820 - English & Old English literatures
157
000 - Computer science, information & general works
152
616 - Diseases
133
100 - Philosophy & psychology
130
140 - Specific philosophical schools
110
600 - Technology
100
005 - Computer programming, programs & data
95
153 - Mental processes & intelligence
95
363 - Other social problems & services
92
301 - Sociology & anthropology
90
331 - Labor economics
86
500 - Natural sciences & mathematics
75
380 - Commerce, communications & transportation
69
170 - Ethics
64
620 - Engineering & allied operations
61
006 - Special computer methods
56
306 - Culture & institutions
55
338 - Production
51
200 - Religion
45
400 - Language
44
384 - Communications; telecommunication
41
576 - Genetics & evolution
37
361 - Social problems & social welfare in general
35
570 - Life sciences; biology
33
381 - Commerce
29
800 - Literature & rhetoric
29
305 - Social groups
26
580 - Plants (Botany)
26
612 - Human physiology
26
940 - History of Europe
25
970 - History of North America
24
304 - Factors affecting social behavior
23
more ...