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