Classification
100 - Philosophy & psychology
300 - Social sciences
301 - Sociology & anthropology
320 - Political science
340 - Law
900 - History & geography
140 - Specific philosophical schools
3
330 - Economics
2
370 - Education
2
600 - Technology
2
000 - Computer science, information & general works
1
170 - Ethics
1
304 - Factors affecting social behavior
1
364 - Criminology
1
530 - Physics
1
576 - Genetics & evolution
1
610 - Medicine & health
1
620 - Engineering & allied operations
1