Classification
551 - Geology, hydrology & meteorology
610 - Medicine & health
000 - Computer science, information & general works
10
363 - Other social problems & services
10
380 - Commerce, communications & transportation
9
333 - Economics of land & energy
8
140 - Specific philosophical schools
7
580 - Plants (Botany)
7
700 - The arts; fine & decorative arts
7
620 - Engineering & allied operations
6
414 - Phonology & phonetics
5
576 - Genetics & evolution
5
540 - Chemistry & allied sciences
4
581 - Specific topics in natural history
4
300 - Social sciences
3
330 - Economics
3
500 - Natural sciences & mathematics
3
612 - Human physiology
3
600 - Technology
2
658 - General management
2
320 - Political science
1
370 - Education
1
630 - Agriculture & related technologies
1
800 - Literature & rhetoric
1
900 - History & geography
1