Classification
610 - Medicine & health
11
000 - Computer science, information & general works
6
333 - Economics of land & energy
6
700 - The arts; fine & decorative arts
5
363 - Other social problems & services
3
380 - Commerce, communications & transportation
3
576 - Genetics & evolution
3
580 - Plants (Botany)
3
620 - Engineering & allied operations
3
100 - Philosophy & psychology
2
140 - Specific philosophical schools
2
600 - Technology
2
304 - Factors affecting social behavior
1
500 - Natural sciences & mathematics
1
540 - Chemistry & allied sciences
1
581 - Specific topics in natural history
1
612 - Human physiology
1