Classification
330 - Economics
513
338 - Production
415
658 - General management
385
332 - Financial economics
104
381 - Commerce
64
657 - Accounting
58
302 - Social interaction
55
650 - Management & auxiliary services
55
158 - Applied psychology
52
300 - Social sciences
52
331 - Labor economics
48
500 - Natural sciences & mathematics
46
670 - Manufacturing
43
000 - Computer science, information & general works
23
005 - Computer programming, programs & data
18
384 - Communications; telecommunication
12
343 - Military, tax, trade & industrial law
11
333 - Economics of land & energy
10
700 - The arts; fine & decorative arts
10
320 - Political science
9
620 - Engineering & allied operations
9
304 - Factors affecting social behavior
8
153 - Mental processes & intelligence
7
001 - Knowledge
6
004 - Data processing & computer science
6
380 - Commerce, communications & transportation
6
336 - Public finance
5
600 - Technology
5
659 - Advertising & public relations
5
006 - Special computer methods
3
150 - Psychology
3
174 - Occupational ethics
3
306 - Culture & institutions
3
339 - Macroeconomics & related topics
3
346 - Private law
3
170 - Ethics
2
303 - Social processes
2
337 - International economics
2
613 - Personal health & safety
2
808 - Rhetoric & collections of literature
2
011 - Bibliographies
1
140 - Specific philosophical schools
1
152 - Perception, movement, emotions & drives
1
301 - Sociology & anthropology
1
350 - Public administration & military science
1
361 - Social problems & social welfare in general
1
363 - Other social problems & services
1
382 - International commerce
1
510 - Mathematics
1
610 - Medicine & health
1
more ...