Classification
000 - Computer science, information & general works
1
100 - Philosophy & psychology
140 - Specific philosophical schools
1
170 - Ethics
3
300 - Social sciences
3
304 - Factors affecting social behavior
1
320 - Political science
330 - Economics
333 - Economics of land & energy
3
350 - Public administration & military science
1
363 - Other social problems & services
2
370 - Education
1
530 - Physics
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
580 - Plants (Botany)
1
581 - Specific topics in natural history
2
600 - Technology
4
610 - Medicine & health
620 - Engineering & allied operations
2
630 - Agriculture & related technologies
1
700 - The arts; fine & decorative arts
2
780 - Music
1
800 - Literature & rhetoric
1
900 - History & geography
2