Classification
612 - Human physiology
610 - Medicine & health
4
333 - Economics of land & energy
3
700 - The arts; fine & decorative arts
3
600 - Technology
2
000 - Computer science, information & general works
1
140 - Specific philosophical schools
1
330 - Economics
1
363 - Other social problems & services
1
551 - Geology, hydrology & meteorology
1