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