Classification
333 - Economics of land & energy
5
600 - Technology
5
700 - The arts; fine & decorative arts
5
720 - Architecture
5
900 - History & geography
363 - Other social problems & services
4
610 - Medicine & health
4
620 - Engineering & allied operations
3
370 - Education
1
551 - Geology, hydrology & meteorology
1
800 - Literature & rhetoric
1