Classification
000 - Computer science, information & general works
100 - Philosophy & psychology
330 - Economics
363 - Other social problems & services
700 - The arts; fine & decorative arts
4
333 - Economics of land & energy
3
200 - Religion
2
320 - Political science
2
551 - Geology, hydrology & meteorology
2
580 - Plants (Botany)
2
581 - Specific topics in natural history
2
600 - Technology
2
610 - Medicine & health
2
658 - General management
2
800 - Literature & rhetoric
2
120 - Epistemology, causation & humankind
1
140 - Specific philosophical schools
1
300 - Social sciences
1
301 - Sociology & anthropology
1
400 - Language
1
410 - Linguistics
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1
900 - History & geography
1