Classification
580 - Plants (Botany)
3
600 - Technology
3
620 - Engineering & allied operations
700 - The arts; fine & decorative arts
3
900 - History & geography
3
333 - Economics of land & energy
2
630 - Agriculture & related technologies
2
330 - Economics
1
340 - Law
1
380 - Commerce, communications & transportation
1
414 - Phonology & phonetics
1