Classification
600 - Technology
10
700 - The arts; fine & decorative arts
8
000 - Computer science, information & general works
5
333 - Economics of land & energy
5
530 - Physics
5
620 - Engineering & allied operations
4
900 - History & geography
4
363 - Other social problems & services
3
580 - Plants (Botany)
2
610 - Medicine & health
2
140 - Specific philosophical schools
1
380 - Commerce, communications & transportation
1
414 - Phonology & phonetics
1
540 - Chemistry & allied sciences
1