Classification
612 - Human physiology
580 - Plants (Botany)
11
700 - The arts; fine & decorative arts
8
000 - Computer science, information & general works
7
140 - Specific philosophical schools
6
610 - Medicine & health
6
333 - Economics of land & energy
5
363 - Other social problems & services
5
380 - Commerce, communications & transportation
5
414 - Phonology & phonetics
5
540 - Chemistry & allied sciences
5
551 - Geology, hydrology & meteorology
5
620 - Engineering & allied operations
5
581 - Specific topics in natural history
4
300 - Social sciences
3
330 - Economics
3
500 - Natural sciences & mathematics
3
576 - Genetics & evolution
3
600 - Technology
2
630 - Agriculture & related technologies
2
370 - Education
1
800 - Literature & rhetoric
1
900 - History & geography
1