Classification
333 - Economics of land & energy
4
610 - Medicine & health
4
140 - Specific philosophical schools
3
580 - Plants (Botany)
3
700 - The arts; fine & decorative arts
3
000 - Computer science, information & general works
2
363 - Other social problems & services
2
380 - Commerce, communications & transportation
2
414 - Phonology & phonetics
2
612 - Human physiology
1
720 - Architecture
1