Classification
610 - Medicine & health
700 - The arts; fine & decorative arts
50
333 - Economics of land & energy
48
000 - Computer science, information & general works
47
140 - Specific philosophical schools
32
363 - Other social problems & services
24
540 - Chemistry & allied sciences
24
580 - Plants (Botany)
24
380 - Commerce, communications & transportation
22
576 - Genetics & evolution
17
304 - Factors affecting social behavior
12
620 - Engineering & allied operations
10
600 - Technology
9
612 - Human physiology
8
615 - Pharmacology & therapeutics
7
414 - Phonology & phonetics
5
500 - Natural sciences & mathematics
4
581 - Specific topics in natural history
4
300 - Social sciences
3
551 - Geology, hydrology & meteorology
3
900 - History & geography
3
100 - Philosophy & psychology
2
330 - Economics
2
630 - Agriculture & related technologies
2
800 - Literature & rhetoric
2
170 - Ethics
1
400 - Language
1
530 - Physics
1
658 - General management
1