Classification
000 - Computer science, information & general works
1
140 - Specific philosophical schools
4
304 - Factors affecting social behavior
3
333 - Economics of land & energy
4
363 - Other social problems & services
4
380 - Commerce, communications & transportation
1
414 - Phonology & phonetics
580 - Plants (Botany)
4
600 - Technology
4
610 - Medicine & health
4
620 - Engineering & allied operations
5
700 - The arts; fine & decorative arts
7