Classification
610 - Medicine & health
18
000 - Computer science, information & general works
13
700 - The arts; fine & decorative arts
12
333 - Economics of land & energy
10
580 - Plants (Botany)
10
612 - Human physiology
8
540 - Chemistry & allied sciences
6
140 - Specific philosophical schools
5
380 - Commerce, communications & transportation
4
600 - Technology
4
620 - Engineering & allied operations
4
363 - Other social problems & services
3
414 - Phonology & phonetics
3
551 - Geology, hydrology & meteorology
3
630 - Agriculture & related technologies
3
615 - Pharmacology & therapeutics
2
664 - Food technology
2
330 - Economics
1
570 - Life sciences; biology
1
576 - Genetics & evolution
1
581 - Specific topics in natural history
1
900 - History & geography
1