Classification
610 - Medicine & health
700 - The arts; fine & decorative arts
13
540 - Chemistry & allied sciences
5
363 - Other social problems & services
4
000 - Computer science, information & general works
3
580 - Plants (Botany)
3
333 - Economics of land & energy
2
600 - Technology
2
320 - Political science
1
330 - Economics
1
576 - Genetics & evolution
1
720 - Architecture
1