Classification
140 - Specific philosophical schools
540 - Chemistry & allied sciences
000 - Computer science, information & general works
16
610 - Medicine & health
11
700 - The arts; fine & decorative arts
10
333 - Economics of land & energy
8
304 - Factors affecting social behavior
3
363 - Other social problems & services
3
600 - Technology
3
620 - Engineering & allied operations
3
580 - Plants (Botany)
2
615 - Pharmacology & therapeutics
2
380 - Commerce, communications & transportation
1
530 - Physics
1
576 - Genetics & evolution
1
900 - History & geography
1