Classification
540 - Chemistry & allied sciences
610 - Medicine & health
3
615 - Pharmacology & therapeutics
330 - Economics
2
000 - Computer science, information & general works
1
363 - Other social problems & services
1
580 - Plants (Botany)
1
600 - Technology
1
620 - Engineering & allied operations
1
700 - The arts; fine & decorative arts
1