Classification
320 - Political science
360 - Social problems & services; associations
361 - Social problems & social welfare in general
34
330 - Economics
10
300 - Social sciences
9
364 - Criminology
5
610 - Medicine & health
5
700 - The arts; fine & decorative arts
5
900 - History & geography
5
140 - Specific philosophical schools
4
340 - Law
4
551 - Geology, hydrology & meteorology
4
170 - Ethics
3
333 - Economics of land & energy
3
370 - Education
3
600 - Technology
3
000 - Computer science, information & general works
2
100 - Philosophy & psychology
2
200 - Religion
2
301 - Sociology & anthropology
2
304 - Factors affecting social behavior
2
350 - Public administration & military science
1
363 - Other social problems & services
1
380 - Commerce, communications & transportation
1
400 - Language
1
500 - Natural sciences & mathematics
1
620 - Engineering & allied operations
1
658 - General management
1