Classification
120 - Epistemology, causation & humankind
363 - Other social problems & services
700 - The arts; fine & decorative arts
5
900 - History & geography
4
100 - Philosophy & psychology
3
300 - Social sciences
3
301 - Sociology & anthropology
3
000 - Computer science, information & general works
2
140 - Specific philosophical schools
2
200 - Religion
2
333 - Economics of land & energy
2
380 - Commerce, communications & transportation
2
500 - Natural sciences & mathematics
2
800 - Literature & rhetoric
2
170 - Ethics
1
320 - Political science
1
330 - Economics
1
400 - Language
1
410 - Linguistics
1
530 - Physics
1
580 - Plants (Botany)
1
581 - Specific topics in natural history
1
600 - Technology
1
620 - Engineering & allied operations
1
720 - Architecture
1