Classification
414 - Phonology & phonetics
2
540 - Chemistry & allied sciences
000 - Computer science, information & general works
1
320 - Political science
1
330 - Economics
1
333 - Economics of land & energy
1
500 - Natural sciences & mathematics
1
580 - Plants (Botany)
1
600 - Technology
1
620 - Engineering & allied operations
1
700 - The arts; fine & decorative arts
1