Classification
540 - Chemistry & allied sciences
720 - Architecture
000 - Computer science, information & general works
3
333 - Economics of land & energy
2
620 - Engineering & allied operations
2
160 - Logic
1
330 - Economics
1
414 - Phonology & phonetics
1
576 - Genetics & evolution
1
600 - Technology
1
700 - The arts; fine & decorative arts
1