Classification
000 - Computer science, information & general works
320 - Political science
330 - Economics
600 - Technology
620 - Engineering & allied operations
658 - General management
700 - The arts; fine & decorative arts
3
333 - Economics of land & energy
2
363 - Other social problems & services
2
900 - History & geography
2
140 - Specific philosophical schools
1
580 - Plants (Botany)
1
720 - Architecture
1