Classification
330 - Economics
333 - Economics of land & energy
3
363 - Other social problems & services
580 - Plants (Botany)
3
581 - Specific topics in natural history
600 - Technology
610 - Medicine & health
620 - Engineering & allied operations
630 - Agriculture & related technologies
3
140 - Specific philosophical schools
2
000 - Computer science, information & general works
1
100 - Philosophy & psychology
1
297 - Islam, Babism & Bahai Faith
1
320 - Political science
1
551 - Geology, hydrology & meteorology
1
658 - General management
1
700 - The arts; fine & decorative arts
1
900 - History & geography
1