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