Classification
000 - Computer science, information & general works
1
140 - Specific philosophical schools
1
330 - Economics
1
333 - Economics of land & energy
3
363 - Other social problems & services
1
414 - Phonology & phonetics
1
540 - Chemistry & allied sciences
1
580 - Plants (Botany)
2
600 - Technology
610 - Medicine & health
1
620 - Engineering & allied operations
4
700 - The arts; fine & decorative arts
900 - History & geography
1