Classification
540 - Chemistry & allied sciences
530 - Physics
2
610 - Medicine & health
2
000 - Computer science, information & general works
1
140 - Specific philosophical schools
1
304 - Factors affecting social behavior
1
320 - Political science
1
333 - Economics of land & energy
1
363 - Other social problems & services
1
370 - Education
1
551 - Geology, hydrology & meteorology
1
700 - The arts; fine & decorative arts
1