Classification
330 - Economics
99
320 - Political science
32
338 - Production
23
332 - Financial economics
14
306 - Culture & institutions
12
333 - Economics of land & energy
12
380 - Commerce, communications & transportation
10
339 - Macroeconomics & related topics
9
300 - Social sciences
8
658 - General management
8
100 - Philosophy & psychology
7
170 - Ethics
7
370 - Education
7
337 - International economics
6
900 - History & geography
6
331 - Labor economics
5
340 - Law
5
519 - Probabilities & applied mathematics
5
650 - Management & auxiliary services
5
174 - Occupational ethics
4
301 - Sociology & anthropology
4
304 - Factors affecting social behavior
4
363 - Other social problems & services
4
620 - Engineering & allied operations
4
307 - Communities
3
343 - Military, tax, trade & industrial law
3
800 - Literature & rhetoric
3
000 - Computer science, information & general works
2
004 - Data processing & computer science
2
005 - Computer programming, programs & data
2
140 - Specific philosophical schools
2
327 - International relations
2
341 - Law of nations
2
346 - Private law
2
381 - Commerce
2
551 - Geology, hydrology & meteorology
2
570 - Life sciences; biology
2
610 - Medicine & health
2
621 - Applied physics
2
657 - Accounting
2
001 - Knowledge
1
006 - Special computer methods
1
011 - Bibliographies
1
153 - Mental processes & intelligence
1
200 - Religion
1
305 - Social groups
1
324 - The political process
1
361 - Social problems & social welfare in general
1
378 - Higher education
1
379 - Public policy issues in education
1
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