Classification
000 - Computer science, information & general works
1
140 - Specific philosophical schools
1
320 - Political science
330 - Economics
1
363 - Other social problems & services
1
540 - Chemistry & allied sciences
1
551 - Geology, hydrology & meteorology
1
581 - Specific topics in natural history
1
610 - Medicine & health
630 - Agriculture & related technologies
1
700 - The arts; fine & decorative arts
1