Classification
200 - Religion
551 - Geology, hydrology & meteorology
700 - The arts; fine & decorative arts
363 - Other social problems & services
3
100 - Philosophy & psychology
2
140 - Specific philosophical schools
2
320 - Political science
2
000 - Computer science, information & general works
1
170 - Ethics
1
330 - Economics
1
333 - Economics of land & energy
1
370 - Education
1
581 - Specific topics in natural history
1
610 - Medicine & health
1
630 - Agriculture & related technologies
1