Classification
320 - Political science
330 - Economics
333 - Economics of land & energy
5
363 - Other social problems & services
600 - Technology
720 - Architecture
370 - Education
4
380 - Commerce, communications & transportation
4
551 - Geology, hydrology & meteorology
4
700 - The arts; fine & decorative arts
4
000 - Computer science, information & general works
3
900 - History & geography
3
580 - Plants (Botany)
2
610 - Medicine & health
2
620 - Engineering & allied operations
2
140 - Specific philosophical schools
1
630 - Agriculture & related technologies
1
658 - General management
1