Classification
140 - Specific philosophical schools
300 - Social sciences
320 - Political science
330 - Economics
361 - Social problems & social welfare in general
333 - Economics of land & energy
2
100 - Philosophy & psychology
1
170 - Ethics
1
301 - Sociology & anthropology
1
360 - Social problems & services; associations
1
700 - The arts; fine & decorative arts
1