Classification
000 - Computer science, information & general works
2
330 - Economics
2
333 - Economics of land & energy
2
580 - Plants (Botany)
340 - Law
1
363 - Other social problems & services
1
551 - Geology, hydrology & meteorology
1
610 - Medicine & health
1
630 - Agriculture & related technologies
1
700 - The arts; fine & decorative arts
1