Classification
000 - Computer science, information & general works
363 - Other social problems & services
530 - Physics
540 - Chemistry & allied sciences
333 - Economics of land & energy
2
620 - Engineering & allied operations
2
700 - The arts; fine & decorative arts
2
300 - Social sciences
1
320 - Political science
1
370 - Education
1
414 - Phonology & phonetics
1
500 - Natural sciences & mathematics
1
551 - Geology, hydrology & meteorology
1
580 - Plants (Botany)
1
600 - Technology
1
630 - Agriculture & related technologies
1