Classification
140 - Specific philosophical schools
551 - Geology, hydrology & meteorology
800 - Literature & rhetoric
363 - Other social problems & services
5
330 - Economics
4
000 - Computer science, information & general works
3
580 - Plants (Botany)
3
700 - The arts; fine & decorative arts
3
320 - Political science
2
333 - Economics of land & energy
2
581 - Specific topics in natural history
2
100 - Philosophy & psychology
1
336 - Public finance
1
361 - Social problems & social welfare in general
1
380 - Commerce, communications & transportation
1
600 - Technology
1
610 - Medicine & health
1
630 - Agriculture & related technologies
1
658 - General management
1