Classification
100 - Philosophy & psychology
140 - Specific philosophical schools
170 - Ethics
300 - Social sciences
340 - Law
320 - Political science
3
200 - Religion
2
301 - Sociology & anthropology
1
304 - Factors affecting social behavior
1
330 - Economics
1
370 - Education
1
600 - Technology
1
610 - Medicine & health
1
700 - The arts; fine & decorative arts
1
900 - History & geography
1