Classification
658 - General management
5,661
650 - Management & auxiliary services
1,480
005 - Computer programming, programs & data
784
657 - Accounting
571
330 - Economics
506
343 - Military, tax, trade & industrial law
403
004 - Data processing & computer science
400
519 - Probabilities & applied mathematics
372
338 - Production
344
006 - Special computer methods
277
332 - Financial economics
274
174 - Occupational ethics
247
346 - Private law
197
300 - Social sciences
158
381 - Commerce
144
336 - Public finance
143
621 - Applied physics
100
158 - Applied psychology
98
670 - Manufacturing
96
003 - Systems
92
303 - Social processes
81
333 - Economics of land & energy
78
306 - Culture & institutions
71
620 - Engineering & allied operations
70
340 - Law
63
339 - Macroeconomics & related topics
61
337 - International economics
55
304 - Factors affecting social behavior
52
362 - Social welfare problems & services
45
610 - Medicine & health
37
025 - Library operations
35
150 - Psychology
35
659 - Advertising & public relations
30
351 - Public administration
26
170 - Ethics
24
302 - Social interaction
24
368 - Insurance
23
301 - Sociology & anthropology
21
320 - Political science
21
624 - Civil engineering
20
629 - Other branches of engineering
19
361 - Social problems & social welfare in general
18
515 - Analysis
14
530 - Physics
14
341 - Law of nations
12
371 - Schools & their activities; special education
12
570 - Life sciences; biology
12
001 - Knowledge
11
370 - Education
11
616 - Diseases
11
more ...