Classification
610 - Medicine & health
700 - The arts; fine & decorative arts
8
000 - Computer science, information & general works
6
140 - Specific philosophical schools
6
333 - Economics of land & energy
5
363 - Other social problems & services
4
304 - Factors affecting social behavior
2
380 - Commerce, communications & transportation
2
540 - Chemistry & allied sciences
2
580 - Plants (Botany)
2
600 - Technology
2
620 - Engineering & allied operations
2
800 - Literature & rhetoric
2
414 - Phonology & phonetics
1
500 - Natural sciences & mathematics
1
612 - Human physiology
1
900 - History & geography
1