Classification
658 - General management
261
330 - Economics
129
338 - Production
71
000 - Computer science, information & general works
69
302 - Social interaction
59
650 - Management & auxiliary services
57
158 - Applied psychology
55
381 - Commerce
43
300 - Social sciences
41
331 - Labor economics
40
153 - Mental processes & intelligence
33
384 - Communications; telecommunication
30
332 - Financial economics
20
500 - Natural sciences & mathematics
20
670 - Manufacturing
17
380 - Commerce, communications & transportation
15
303 - Social processes
12
152 - Perception, movement, emotions & drives
10
155 - Differential & developmental psychology
10
150 - Psychology
9
800 - Literature & rhetoric
8
659 - Advertising & public relations
7
170 - Ethics
6
339 - Macroeconomics & related topics
6
001 - Knowledge
5
005 - Computer programming, programs & data
4
006 - Special computer methods
4
174 - Occupational ethics
4
657 - Accounting
4
796 - Athletic & outdoor sports & games
4
808 - Rhetoric & collections of literature
4
306 - Culture & institutions
3
363 - Other social problems & services
3
620 - Engineering & allied operations
3
791 - Public performances
3
973 - United States
3
004 - Data processing & computer science
2
305 - Social groups
2
321 - Systems of governments & states
2
352 - General considerations of public administration
2
362 - Social welfare problems & services
2
370 - Education
2
745 - Decorative arts
2
770 - Photography, photographs & computer art
2
863 - Spanish fiction
2
011 - Bibliographies
1
105 - Serial publications
1
179 - Other ethical norms
1
181 - Eastern philosophy
1
185 - Aristotelian philosophy
1
more ...