Classification
414 - Phonology & phonetics
700 - The arts; fine & decorative arts
7
600 - Technology
6
000 - Computer science, information & general works
3
333 - Economics of land & energy
2
610 - Medicine & health
2
620 - Engineering & allied operations
2
900 - History & geography
2
330 - Economics
1
380 - Commerce, communications & transportation
1
530 - Physics
1
576 - Genetics & evolution
1
580 - Plants (Botany)
1