Classification
000 - Computer science, information & general works
2
140 - Specific philosophical schools
1
297 - Islam, Babism & Bahai Faith
1
330 - Economics
333 - Economics of land & energy
5
363 - Other social problems & services
4
380 - Commerce, communications & transportation
1
540 - Chemistry & allied sciences
2
576 - Genetics & evolution
1
580 - Plants (Botany)
581 - Specific topics in natural history
1
600 - Technology
5
610 - Medicine & health
620 - Engineering & allied operations
4
630 - Agriculture & related technologies
3
658 - General management
2
700 - The arts; fine & decorative arts
2
900 - History & geography