Classification
330 - Economics
20
600 - Technology
3
620 - Engineering & allied operations
3
000 - Computer science, information & general works
2
333 - Economics of land & energy
2
551 - Geology, hydrology & meteorology
2
700 - The arts; fine & decorative arts
2
900 - History & geography
2
363 - Other social problems & services
1
380 - Commerce, communications & transportation
1
612 - Human physiology
1
630 - Agriculture & related technologies
1