Classification
000 - Computer science, information & general works
610 - Medicine & health
700 - The arts; fine & decorative arts
333 - Economics of land & energy
13
580 - Plants (Botany)
8
140 - Specific philosophical schools
6
380 - Commerce, communications & transportation
6
600 - Technology
6
612 - Human physiology
6
330 - Economics
5
363 - Other social problems & services
4
540 - Chemistry & allied sciences
4
620 - Engineering & allied operations
4
500 - Natural sciences & mathematics
3
800 - Literature & rhetoric
3
370 - Education
2
900 - History & geography
2
414 - Phonology & phonetics
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
658 - General management
1