Classification
320 - Political science
580 - Plants (Botany)
551 - Geology, hydrology & meteorology
3
333 - Economics of land & energy
2
380 - Commerce, communications & transportation
2
630 - Agriculture & related technologies
2
720 - Architecture
2
000 - Computer science, information & general works
1
330 - Economics
1
340 - Law
1
363 - Other social problems & services
1
700 - The arts; fine & decorative arts
1
800 - Literature & rhetoric
1