Classification
658 - General management
169
330 - Economics
145
338 - Production
64
500 - Natural sciences & mathematics
56
300 - Social sciences
53
331 - Labor economics
50
620 - Engineering & allied operations
46
302 - Social interaction
45
005 - Computer programming, programs & data
30
332 - Financial economics
29
381 - Commerce
27
000 - Computer science, information & general works
26
670 - Manufacturing
22
384 - Communications; telecommunication
21
158 - Applied psychology
17
346 - Private law
17
650 - Management & auxiliary services
17
621 - Applied physics
16
745 - Decorative arts
16
006 - Special computer methods
14
004 - Data processing & computer science
11
153 - Mental processes & intelligence
11
170 - Ethics
10
343 - Military, tax, trade & industrial law
9
001 - Knowledge
8
791 - Public performances
8
364 - Criminology
6
374 - Adult education
6
303 - Social processes
5
011 - Bibliographies
4
025 - Library operations
4
174 - Occupational ethics
4
657 - Accounting
4
368 - Insurance
3
371 - Schools & their activities; special education
3
600 - Technology
3
740 - Drawing & decorative arts
3
741 - Drawing & drawings
3
770 - Photography, photographs & computer art
3
794 - Indoor games of skill
3
800 - Literature & rhetoric
3
808 - Rhetoric & collections of literature
3
070 - News media, journalism & publishing
2
152 - Perception, movement, emotions & drives
2
333 - Economics of land & energy
2
339 - Macroeconomics & related topics
2
352 - General considerations of public administration
2
355 - Military science
2
363 - Other social problems & services
2
370 - Education
2
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