Classification
000 - Computer science, information & general works
1
140 - Specific philosophical schools
1
304 - Factors affecting social behavior
1
320 - Political science
330 - Economics
333 - Economics of land & energy
1
363 - Other social problems & services
1
581 - Specific topics in natural history
1
610 - Medicine & health
630 - Agriculture & related technologies
1
700 - The arts; fine & decorative arts