Classification
330 - Economics
17
320 - Political science
11
140 - Specific philosophical schools
9
333 - Economics of land & energy
7
900 - History & geography
7
340 - Law
6
300 - Social sciences
5
610 - Medicine & health
5
100 - Philosophy & psychology
4
658 - General management
4
700 - The arts; fine & decorative arts
4
361 - Social problems & social welfare in general
3
370 - Education
3
600 - Technology
3
304 - Factors affecting social behavior
2
335 - Socialism & related systems
2
338 - Production
2
363 - Other social problems & services
2
380 - Commerce, communications & transportation
2
000 - Computer science, information & general works
1
194 - Philosophy of France
1
301 - Sociology & anthropology
1
302 - Social interaction
1
303 - Social processes
1
325 - International migration & colonization
1
331 - Labor economics
1
332 - Financial economics
1
346 - Private law
1
500 - Natural sciences & mathematics
1
909 - World history
1