Classification
658 - General management
5,925
330 - Economics
1,426
300 - Social sciences
899
302 - Social interaction
648
331 - Labor economics
553
158 - Applied psychology
396
650 - Management & auxiliary services
396
000 - Computer science, information & general works
383
338 - Production
305
500 - Natural sciences & mathematics
279
670 - Manufacturing
276
371 - Schools & their activities; special education
213
384 - Communications; telecommunication
198
370 - Education
184
320 - Political science
154
153 - Mental processes & intelligence
143
380 - Commerce, communications & transportation
138
303 - Social processes
101
306 - Culture & institutions
79
174 - Occupational ethics
73
170 - Ethics
69
378 - Higher education
67
381 - Commerce
57
333 - Economics of land & energy
56
610 - Medicine & health
53
001 - Knowledge
52
004 - Data processing & computer science
52
700 - The arts; fine & decorative arts
50
332 - Financial economics
49
005 - Computer programming, programs & data
48
657 - Accounting
45
155 - Differential & developmental psychology
40
150 - Psychology
39
379 - Public policy issues in education
39
620 - Engineering & allied operations
37
100 - Philosophy & psychology
35
362 - Social welfare problems & services
33
363 - Other social problems & services
33
600 - Technology
31
140 - Specific philosophical schools
29
900 - History & geography
28
336 - Public finance
27
305 - Social groups
24
152 - Perception, movement, emotions & drives
21
324 - The political process
21
340 - Law
21
006 - Special computer methods
16
301 - Sociology & anthropology
16
337 - International economics
16
351 - Public administration
16
more ...