Classification
363 - Other social problems & services
610 - Medicine & health
11
700 - The arts; fine & decorative arts
7
140 - Specific philosophical schools
6
304 - Factors affecting social behavior
6
333 - Economics of land & energy
5
000 - Computer science, information & general works
4
540 - Chemistry & allied sciences
3
576 - Genetics & evolution
3
380 - Commerce, communications & transportation
2
580 - Plants (Botany)
2
800 - Literature & rhetoric
2
330 - Economics
1
581 - Specific topics in natural history
1
600 - Technology
1