Classification
000 - Computer science, information & general works
2
320 - Political science
330 - Economics
333 - Economics of land & energy
2
363 - Other social problems & services
630 - Agriculture & related technologies
720 - Architecture
551 - Geology, hydrology & meteorology
1
580 - Plants (Botany)
1
600 - Technology
1
620 - Engineering & allied operations
1