Classification
576 - Genetics & evolution
610 - Medicine & health
8
615 - Pharmacology & therapeutics
8
700 - The arts; fine & decorative arts
4
140 - Specific philosophical schools
3
333 - Economics of land & energy
3
000 - Computer science, information & general works
2
380 - Commerce, communications & transportation
2
540 - Chemistry & allied sciences
2
600 - Technology
2
100 - Philosophy & psychology
1
170 - Ethics
1
304 - Factors affecting social behavior
1
330 - Economics
1
363 - Other social problems & services
1
500 - Natural sciences & mathematics
1
800 - Literature & rhetoric
1