Classification
610 - Medicine & health
35
700 - The arts; fine & decorative arts
20
140 - Specific philosophical schools
17
000 - Computer science, information & general works
13
333 - Economics of land & energy
10
363 - Other social problems & services
8
600 - Technology
5
800 - Literature & rhetoric
5
540 - Chemistry & allied sciences
4
320 - Political science
3
380 - Commerce, communications & transportation
3
580 - Plants (Botany)
3
120 - Epistemology, causation & humankind
2
304 - Factors affecting social behavior
2
330 - Economics
2
581 - Specific topics in natural history
2
170 - Ethics
1
370 - Education
1
414 - Phonology & phonetics
1
500 - Natural sciences & mathematics
1
576 - Genetics & evolution
1
615 - Pharmacology & therapeutics
1
620 - Engineering & allied operations
1
900 - History & geography
1