Classification
330 - Economics
576 - Genetics & evolution
600 - Technology
4
620 - Engineering & allied operations
700 - The arts; fine & decorative arts
4
800 - Literature & rhetoric
900 - History & geography
3
333 - Economics of land & energy
2
720 - Architecture
2
000 - Computer science, information & general works
1
380 - Commerce, communications & transportation
1
580 - Plants (Botany)
1
610 - Medicine & health
1
658 - General management
1