Classification
610 - Medicine & health
10
000 - Computer science, information & general works
4
540 - Chemistry & allied sciences
4
700 - The arts; fine & decorative arts
3
140 - Specific philosophical schools
2
363 - Other social problems & services
2
600 - Technology
2
620 - Engineering & allied operations
2
304 - Factors affecting social behavior
1
330 - Economics
1
333 - Economics of land & energy
1
580 - Plants (Botany)
1
628 - Sanitary & municipal engineering
1
658 - General management
1