Classification
580 - Plants (Botany)
630 - Agriculture & related technologies
000 - Computer science, information & general works
1
333 - Economics of land & energy
1
370 - Education
1
380 - Commerce, communications & transportation
1
530 - Physics
1
551 - Geology, hydrology & meteorology
1
600 - Technology
1
610 - Medicine & health
1
700 - The arts; fine & decorative arts
1