Classification
000 - Computer science, information & general works
2
330 - Economics
2
333 - Economics of land & energy
2
576 - Genetics & evolution
580 - Plants (Botany)
2
600 - Technology
2
620 - Engineering & allied operations
2
700 - The arts; fine & decorative arts
2
720 - Architecture
2
900 - History & geography
2