Classification
600 - Technology
6
620 - Engineering & allied operations
6
333 - Economics of land & energy
5
700 - The arts; fine & decorative arts
5
580 - Plants (Botany)
4
610 - Medicine & health
4
621 - Applied physics
4
630 - Agriculture & related technologies
4
000 - Computer science, information & general works
3
363 - Other social problems & services
3
330 - Economics
2
380 - Commerce, communications & transportation
2
551 - Geology, hydrology & meteorology
2
900 - History & geography
2
004 - Data processing & computer science
1
320 - Political science
1
370 - Education
1
500 - Natural sciences & mathematics
1
530 - Physics
1
658 - General management
1
720 - Architecture
1