Classification
330 - Economics
333 - Economics of land & energy
5
363 - Other social problems & services
5
370 - Education
600 - Technology
5
610 - Medicine & health
900 - History & geography
4
320 - Political science
3
380 - Commerce, communications & transportation
3
551 - Geology, hydrology & meteorology
3
700 - The arts; fine & decorative arts
3
620 - Engineering & allied operations
2
720 - Architecture
2
000 - Computer science, information & general works
1
360 - Social problems & services; associations
1
658 - General management
1
800 - Literature & rhetoric
1