Classification
530 - Physics
700 - The arts; fine & decorative arts
10
500 - Natural sciences & mathematics
7
333 - Economics of land & energy
6
540 - Chemistry & allied sciences
4
620 - Engineering & allied operations
4
791 - Public performances
3
000 - Computer science, information & general works
1
003 - Systems
1
330 - Economics
1
580 - Plants (Botany)
1
600 - Technology
1
621 - Applied physics
1