Classification
140 - Specific philosophical schools
330 - Economics
580 - Plants (Botany)
610 - Medicine & health
000 - Computer science, information & general works
4
320 - Political science
3
363 - Other social problems & services
3
700 - The arts; fine & decorative arts
3
551 - Geology, hydrology & meteorology
2
380 - Commerce, communications & transportation
1
581 - Specific topics in natural history
1
630 - Agriculture & related technologies
1
657 - Accounting
1