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