Classification
600 - Technology
4
612 - Human physiology
620 - Engineering & allied operations
630 - Agriculture & related technologies
4
000 - Computer science, information & general works
3
363 - Other social problems & services
3
580 - Plants (Botany)
3
700 - The arts; fine & decorative arts
2
333 - Economics of land & energy
1
414 - Phonology & phonetics
1
540 - Chemistry & allied sciences
1
551 - Geology, hydrology & meteorology
1
610 - Medicine & health
1
900 - History & geography
1