Classification
610 - Medicine & health
16
700 - The arts; fine & decorative arts
10
600 - Technology
9
000 - Computer science, information & general works
8
580 - Plants (Botany)
8
576 - Genetics & evolution
7
140 - Specific philosophical schools
6
620 - Engineering & allied operations
5
304 - Factors affecting social behavior
3
330 - Economics
3
900 - History & geography
3
333 - Economics of land & energy
2
363 - Other social problems & services
2
380 - Commerce, communications & transportation
2
570 - Life sciences; biology
2
581 - Specific topics in natural history
2
414 - Phonology & phonetics
1
530 - Physics
1
540 - Chemistry & allied sciences
1
551 - Geology, hydrology & meteorology
1
579 - Microorganisms, fungi & algae
1
615 - Pharmacology & therapeutics
1
630 - Agriculture & related technologies
1
791 - Public performances
1