Classification
300 - Social sciences
340 - Law
320 - Political science
20
140 - Specific philosophical schools
14
330 - Economics
10
900 - History & geography
8
100 - Philosophy & psychology
6
301 - Sociology & anthropology
6
304 - Factors affecting social behavior
5
170 - Ethics
4
200 - Religion
4
333 - Economics of land & energy
4
610 - Medicine & health
4
700 - The arts; fine & decorative arts
4
364 - Criminology
3
361 - Social problems & social welfare in general
2
370 - Education
2
380 - Commerce, communications & transportation
2
410 - Linguistics
2
800 - Literature & rhetoric
2
350 - Public administration & military science
1
360 - Social problems & services; associations
1
363 - Other social problems & services
1
600 - Technology
1
620 - Engineering & allied operations
1
720 - Architecture
1