Classification
140 - Specific philosophical schools
300 - Social sciences
5
301 - Sociology & anthropology
320 - Political science
340 - Law
900 - History & geography
100 - Philosophy & psychology
4
330 - Economics
3
304 - Factors affecting social behavior
2
370 - Education
2
600 - Technology
2
000 - Computer science, information & general works
1
170 - Ethics
1
333 - Economics of land & energy
1
363 - Other social problems & services
1
364 - Criminology
1
530 - Physics
1
576 - Genetics & evolution
1
620 - Engineering & allied operations
1
700 - The arts; fine & decorative arts
1