Classification
361 - Social problems & social welfare in general
700 - The arts; fine & decorative arts
360 - Social problems & services; associations
4
330 - Economics
3
300 - Social sciences
2
320 - Political science
2
140 - Specific philosophical schools
1
333 - Economics of land & energy
1
350 - Public administration & military science
1
610 - Medicine & health
1
900 - History & geography
1