Classification
000 - Computer science, information & general works
2
330 - Economics
551 - Geology, hydrology & meteorology
600 - Technology
333 - Economics of land & energy
1
363 - Other social problems & services
1
580 - Plants (Botany)
1
581 - Specific topics in natural history
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1
700 - The arts; fine & decorative arts
1