Classification
580 - Plants (Botany)
363 - Other social problems & services
6
600 - Technology
6
551 - Geology, hydrology & meteorology
5
620 - Engineering & allied operations
5
700 - The arts; fine & decorative arts
5
000 - Computer science, information & general works
4
330 - Economics
4
333 - Economics of land & energy
3
630 - Agriculture & related technologies
3
380 - Commerce, communications & transportation
2
500 - Natural sciences & mathematics
2
610 - Medicine & health
2
800 - Literature & rhetoric
2
900 - History & geography
2
320 - Political science
1
540 - Chemistry & allied sciences
1
658 - General management
1