Classification
000 - Computer science, information & general works
363 - Other social problems & services
700 - The arts; fine & decorative arts
370 - Education
4
610 - Medicine & health
4
330 - Economics
3
600 - Technology
3
140 - Specific philosophical schools
2
320 - Political science
2
333 - Economics of land & energy
2
380 - Commerce, communications & transportation
2
620 - Engineering & allied operations
2
100 - Philosophy & psychology
1
304 - Factors affecting social behavior
1
576 - Genetics & evolution
1
780 - Music
1