Classification
576 - Genetics & evolution
581 - Specific topics in natural history
610 - Medicine & health
333 - Economics of land & energy
8
363 - Other social problems & services
8
000 - Computer science, information & general works
6
140 - Specific philosophical schools
6
380 - Commerce, communications & transportation
5
700 - The arts; fine & decorative arts
5
300 - Social sciences
4
551 - Geology, hydrology & meteorology
4
580 - Plants (Botany)
4
304 - Factors affecting social behavior
3
414 - Phonology & phonetics
3
500 - Natural sciences & mathematics
3
540 - Chemistry & allied sciences
3
612 - Human physiology
3
620 - Engineering & allied operations
3
900 - History & geography
3
320 - Political science
2
330 - Economics
2
100 - Philosophy & psychology
1
350 - Public administration & military science
1
364 - Criminology
1
600 - Technology
1
800 - Literature & rhetoric
1