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