Classification
300 - Social sciences
360 - Social problems & services; associations
361 - Social problems & social welfare in general
63
364 - Criminology
41
320 - Political science
22
330 - Economics
11
340 - Law
9
301 - Sociology & anthropology
7
900 - History & geography
7
100 - Philosophy & psychology
6
700 - The arts; fine & decorative arts
6
000 - Computer science, information & general works
4
140 - Specific philosophical schools
4
304 - Factors affecting social behavior
4
333 - Economics of land & energy
4
370 - Education
4
600 - Technology
4
170 - Ethics
3
610 - Medicine & health
3
200 - Religion
2
380 - Commerce, communications & transportation
2
620 - Engineering & allied operations
2
350 - Public administration & military science
1
400 - Language
1
500 - Natural sciences & mathematics
1
576 - Genetics & evolution
1
630 - Agriculture & related technologies
1