Classification
000 - Computer science, information & general works
5
333 - Economics of land & energy
2
363 - Other social problems & services
2
380 - Commerce, communications & transportation
1
500 - Natural sciences & mathematics
3
540 - Chemistry & allied sciences
1
551 - Geology, hydrology & meteorology
2
576 - Genetics & evolution
1
580 - Plants (Botany)
8
581 - Specific topics in natural history
5
600 - Technology
3
610 - Medicine & health
4
620 - Engineering & allied operations
2
630 - Agriculture & related technologies
2
700 - The arts; fine & decorative arts
6
720 - Architecture
1
900 - History & geography
1