Classification
301 - Sociology & anthropology
304 - Factors affecting social behavior
330 - Economics
300 - Social sciences
5
140 - Specific philosophical schools
2
320 - Political science
2
340 - Law
2
900 - History & geography
2
000 - Computer science, information & general works
1
100 - Philosophy & psychology
1
170 - Ethics
1
333 - Economics of land & energy
1
361 - Social problems & social welfare in general
1
363 - Other social problems & services
1
370 - Education
1
600 - Technology
1
700 - The arts; fine & decorative arts
1