Classification
100 - Philosophy & psychology
170 - Ethics
2
200 - Religion
320 - Political science
370 - Education
140 - Specific philosophical schools
1
300 - Social sciences
1
333 - Economics of land & energy
1
363 - Other social problems & services
1
551 - Geology, hydrology & meteorology
1
610 - Medicine & health
1
700 - The arts; fine & decorative arts
1