Classification
100 - Philosophy & psychology
370 - Education
19
333 - Economics of land & energy
8
500 - Natural sciences & mathematics
8
600 - Technology
5
140 - Specific philosophical schools
4
320 - Political science
4
400 - Language
3
620 - Engineering & allied operations
3
700 - The arts; fine & decorative arts
3
780 - Music
3
900 - History & geography
3
300 - Social sciences
2
363 - Other social problems & services
2
610 - Medicine & health
2
657 - Accounting
2
720 - Architecture
2
000 - Computer science, information & general works
1
580 - Plants (Botany)
1
800 - Literature & rhetoric
1