Classification
551 - Geology, hydrology & meteorology
000 - Computer science, information & general works
2
333 - Economics of land & energy
2
576 - Genetics & evolution
2
700 - The arts; fine & decorative arts
2
140 - Specific philosophical schools
1
320 - Political science
1
330 - Economics
1
363 - Other social problems & services
1
530 - Physics
1