Classification
610 - Medicine & health
36
700 - The arts; fine & decorative arts
15
540 - Chemistry & allied sciences
8
000 - Computer science, information & general works
7
140 - Specific philosophical schools
7
333 - Economics of land & energy
7
363 - Other social problems & services
7
600 - Technology
4
380 - Commerce, communications & transportation
3
304 - Factors affecting social behavior
2
320 - Political science
2
330 - Economics
2
576 - Genetics & evolution
2
580 - Plants (Botany)
2
615 - Pharmacology & therapeutics
2
620 - Engineering & allied operations
2
370 - Education
1
414 - Phonology & phonetics
1
500 - Natural sciences & mathematics
1
581 - Specific topics in natural history
1
612 - Human physiology
1
630 - Agriculture & related technologies
1
900 - History & geography
1