Classification
700 - The arts; fine & decorative arts
15
540 - Chemistry & allied sciences
13
000 - Computer science, information & general works
12
610 - Medicine & health
7
576 - Genetics & evolution
5
600 - Technology
4
620 - Engineering & allied operations
4
333 - Economics of land & energy
3
304 - Factors affecting social behavior
2
363 - Other social problems & services
2
100 - Philosophy & psychology
1
140 - Specific philosophical schools
1
301 - Sociology & anthropology
1
320 - Political science
1
380 - Commerce, communications & transportation
1
414 - Phonology & phonetics
1
530 - Physics
1
581 - Specific topics in natural history
1
615 - Pharmacology & therapeutics
1
800 - Literature & rhetoric
1
900 - History & geography
1