Classification
414 - Phonology & phonetics
333 - Economics of land & energy
4
600 - Technology
4
610 - Medicine & health
3
700 - The arts; fine & decorative arts
3
000 - Computer science, information & general works
2
620 - Engineering & allied operations
2
900 - History & geography
2
380 - Commerce, communications & transportation
1
400 - Language
1
410 - Linguistics
1
580 - Plants (Botany)
1