Classification
658 - General management
1,224
330 - Economics
795
338 - Production
472
650 - Management & auxiliary services
192
158 - Applied psychology
141
300 - Social sciences
82
500 - Natural sciences & mathematics
65
302 - Social interaction
64
332 - Financial economics
62
331 - Labor economics
59
670 - Manufacturing
58
381 - Commerce
52
333 - Economics of land & energy
51
000 - Computer science, information & general works
50
370 - Education
36
700 - The arts; fine & decorative arts
35
153 - Mental processes & intelligence
33
320 - Political science
30
600 - Technology
29
303 - Social processes
23
380 - Commerce, communications & transportation
23
304 - Factors affecting social behavior
22
620 - Engineering & allied operations
22
800 - Literature & rhetoric
20
610 - Medicine & health
18
140 - Specific philosophical schools
17
363 - Other social problems & services
17
384 - Communications; telecommunication
15
337 - International economics
14
174 - Occupational ethics
12
306 - Culture & institutions
12
657 - Accounting
12
001 - Knowledge
11
900 - History & geography
10
336 - Public finance
9
100 - Philosophy & psychology
8
170 - Ethics
7
305 - Social groups
7
361 - Social problems & social welfare in general
7
301 - Sociology & anthropology
6
339 - Macroeconomics & related topics
6
340 - Law
6
346 - Private law
6
540 - Chemistry & allied sciences
6
621 - Applied physics
6
630 - Agriculture & related technologies
6
659 - Advertising & public relations
6
745 - Decorative arts
6
004 - Data processing & computer science
5
150 - Psychology
5
more ...