Classification
330 - Economics
3,319
658 - General management
90
332 - Financial economics
74
338 - Production
47
300 - Social sciences
31
320 - Political science
18
500 - Natural sciences & mathematics
18
331 - Labor economics
17
339 - Macroeconomics & related topics
15
302 - Social interaction
14
368 - Insurance
12
000 - Computer science, information & general works
11
380 - Commerce, communications & transportation
11
670 - Manufacturing
11
333 - Economics of land & energy
9
153 - Mental processes & intelligence
7
900 - History & geography
7
001 - Knowledge
6
384 - Communications; telecommunication
6
700 - The arts; fine & decorative arts
6
336 - Public finance
5
337 - International economics
5
659 - Advertising & public relations
5
820 - English & Old English literatures
5
100 - Philosophy & psychology
4
155 - Differential & developmental psychology
4
158 - Applied psychology
4
363 - Other social problems & services
4
610 - Medicine & health
4
620 - Engineering & allied operations
4
650 - Management & auxiliary services
4
140 - Specific philosophical schools
3
170 - Ethics
3
305 - Social groups
3
340 - Law
3
370 - Education
3
381 - Commerce
3
551 - Geology, hydrology & meteorology
3
600 - Technology
3
303 - Social processes
2
304 - Factors affecting social behavior
2
343 - Military, tax, trade & industrial law
2
350 - Public administration & military science
2
657 - Accounting
2
943 - Central Europe; Germany
2
006 - Special computer methods
1
150 - Psychology
1
174 - Occupational ethics
1
200 - Religion
1
301 - Sociology & anthropology
1
more ...