Classification
330 - Economics
340 - Law
363 - Other social problems & services
3
581 - Specific topics in natural history
700 - The arts; fine & decorative arts
140 - Specific philosophical schools
2
333 - Economics of land & energy
2
100 - Philosophy & psychology
1
170 - Ethics
1
320 - Political science
1
350 - Public administration & military science
1
551 - Geology, hydrology & meteorology
1
600 - Technology
1
610 - Medicine & health
1
612 - Human physiology
1
630 - Agriculture & related technologies
1