Classification
100 - Philosophy & psychology
330 - Economics
333 - Economics of land & energy
600 - Technology
700 - The arts; fine & decorative arts
610 - Medicine & health
5
620 - Engineering & allied operations
5
630 - Agriculture & related technologies
4
363 - Other social problems & services
3
370 - Education
3
140 - Specific philosophical schools
2
000 - Computer science, information & general works
1
170 - Ethics
1
200 - Religion
1
300 - Social sciences
1
301 - Sociology & anthropology
1
320 - Political science
1
540 - Chemistry & allied sciences
1
551 - Geology, hydrology & meteorology
1
580 - Plants (Botany)
1
581 - Specific topics in natural history
1
791 - Public performances
1
800 - Literature & rhetoric
1
900 - History & geography
1