Classification
000 - Computer science, information & general works
300 - Social sciences
1
304 - Factors affecting social behavior
1
320 - Political science
2
330 - Economics
2
333 - Economics of land & energy
5
363 - Other social problems & services
380 - Commerce, communications & transportation
2
551 - Geology, hydrology & meteorology
1
580 - Plants (Botany)
581 - Specific topics in natural history
1
600 - Technology
610 - Medicine & health
1
620 - Engineering & allied operations
6
630 - Agriculture & related technologies
2
658 - General management
1
700 - The arts; fine & decorative arts
4
720 - Architecture
1
900 - History & geography