Classification
140 - Specific philosophical schools
330 - Economics
580 - Plants (Botany)
600 - Technology
620 - Engineering & allied operations
3
658 - General management
900 - History & geography
333 - Economics of land & energy
2
630 - Agriculture & related technologies
2
700 - The arts; fine & decorative arts
2
000 - Computer science, information & general works
1
297 - Islam, Babism & Bahai Faith
1
320 - Political science
1
363 - Other social problems & services
1
581 - Specific topics in natural history
1
610 - Medicine & health
1
720 - Architecture
1