Classification
530 - Physics
500 - Natural sciences & mathematics
4
000 - Computer science, information & general works
3
330 - Economics
1
333 - Economics of land & energy
1
340 - Law
1
414 - Phonology & phonetics
1
540 - Chemistry & allied sciences
1
700 - The arts; fine & decorative arts
1
791 - Public performances
1
900 - History & geography
1