Classification
000 - Computer science, information & general works
2
100 - Philosophy & psychology
330 - Economics
363 - Other social problems & services
600 - Technology
700 - The arts; fine & decorative arts
200 - Religion
1
320 - Political science
1
333 - Economics of land & energy
1
551 - Geology, hydrology & meteorology
1
580 - Plants (Botany)
1
581 - Specific topics in natural history
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1
658 - General management
1