Classification
000 - Computer science, information & general works
363 - Other social problems & services
580 - Plants (Botany)
600 - Technology
610 - Medicine & health
630 - Agriculture & related technologies
10
620 - Engineering & allied operations
9
700 - The arts; fine & decorative arts
8
333 - Economics of land & energy
5
380 - Commerce, communications & transportation
4
551 - Geology, hydrology & meteorology
4
581 - Specific topics in natural history
3
720 - Architecture
2
100 - Philosophy & psychology
1
320 - Political science
1
330 - Economics
1
414 - Phonology & phonetics
1
612 - Human physiology
1
900 - History & geography
1