Classification
576 - Genetics & evolution
600 - Technology
3
620 - Engineering & allied operations
700 - The arts; fine & decorative arts
3
800 - Literature & rhetoric
330 - Economics
2
900 - History & geography
2
000 - Computer science, information & general works
1
333 - Economics of land & energy
1
580 - Plants (Botany)
1
658 - General management
1
720 - Architecture
1