Classification
330 - Economics
338 - Production
658 - General management
2,009
300 - Social sciences
619
331 - Labor economics
546
332 - Financial economics
497
302 - Social interaction
486
500 - Natural sciences & mathematics
369
650 - Management & auxiliary services
348
670 - Manufacturing
337
381 - Commerce
314
000 - Computer science, information & general works
296
158 - Applied psychology
228
153 - Mental processes & intelligence
157
384 - Communications; telecommunication
134
005 - Computer programming, programs & data
116
657 - Accounting
83
004 - Data processing & computer science
76
620 - Engineering & allied operations
73
006 - Special computer methods
59
001 - Knowledge
54
745 - Decorative arts
44
380 - Commerce, communications & transportation
43
303 - Social processes
34
304 - Factors affecting social behavior
33
368 - Insurance
33
170 - Ethics
32
800 - Literature & rhetoric
24
659 - Advertising & public relations
20
364 - Criminology
18
343 - Military, tax, trade & industrial law
13
600 - Technology
13
339 - Macroeconomics & related topics
12
374 - Adult education
10
346 - Private law
9
621 - Applied physics
9
150 - Psychology
8
174 - Occupational ethics
8
510 - Mathematics
8
651 - Office services
8
336 - Public finance
7
382 - International commerce
7
519 - Probabilities & applied mathematics
6
700 - The arts; fine & decorative arts
6
011 - Bibliographies
5
808 - Rhetoric & collections of literature
5
025 - Library operations
4
320 - Political science
4
610 - Medicine & health
4
155 - Differential & developmental psychology
3
more ...