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