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