Classification
610 - Medicine & health
612 - Human physiology
500 - Natural sciences & mathematics
26
000 - Computer science, information & general works
22
700 - The arts; fine & decorative arts
22
580 - Plants (Botany)
15
380 - Commerce, communications & transportation
14
333 - Economics of land & energy
13
540 - Chemistry & allied sciences
10
140 - Specific philosophical schools
9
600 - Technology
9
363 - Other social problems & services
7
620 - Engineering & allied operations
7
414 - Phonology & phonetics
6
370 - Education
4
551 - Geology, hydrology & meteorology
4
576 - Genetics & evolution
4
900 - History & geography
4
300 - Social sciences
3
581 - Specific topics in natural history
3
630 - Agriculture & related technologies
3
330 - Economics
2
361 - Social problems & social welfare in general
2
100 - Philosophy & psychology
1
340 - Law
1
613 - Personal health & safety
1
615 - Pharmacology & therapeutics
1
658 - General management
1