Classification
336 - Public finance
330 - Economics
303
320 - Political science
131
658 - General management
113
333 - Economics of land & energy
94
363 - Other social problems & services
75
380 - Commerce, communications & transportation
63
610 - Medicine & health
33
304 - Factors affecting social behavior
30
600 - Technology
26
332 - Financial economics
17
340 - Law
17
100 - Philosophy & psychology
15
370 - Education
12
900 - History & geography
12
338 - Production
8
630 - Agriculture & related technologies
8
300 - Social sciences
6
361 - Social problems & social welfare in general
6
657 - Accounting
6
331 - Labor economics
3
500 - Natural sciences & mathematics
3
140 - Specific philosophical schools
2
301 - Sociology & anthropology
2
339 - Macroeconomics & related topics
2
350 - Public administration & military science
2
381 - Commerce
2
580 - Plants (Botany)
2
620 - Engineering & allied operations
2
670 - Manufacturing
2
700 - The arts; fine & decorative arts
2
000 - Computer science, information & general works
1
153 - Mental processes & intelligence
1
551 - Geology, hydrology & meteorology
1
650 - Management & auxiliary services
1
800 - Literature & rhetoric
1