Classification
658 - General management
1,186
330 - Economics
765
338 - Production
462
650 - Management & auxiliary services
190
158 - Applied psychology
140
300 - Social sciences
81
302 - Social interaction
63
500 - Natural sciences & mathematics
63
332 - Financial economics
62
331 - Labor economics
59
670 - Manufacturing
58
333 - Economics of land & energy
51
381 - Commerce
50
000 - Computer science, information & general works
49
370 - Education
35
700 - The arts; fine & decorative arts
35
153 - Mental processes & intelligence
32
320 - Political science
30
600 - Technology
29
304 - Factors affecting social behavior
23
380 - Commerce, communications & transportation
23
620 - Engineering & allied operations
22
303 - Social processes
21
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
13
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
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
339 - Macroeconomics & related topics
5
720 - Architecture
5
more ...