Classification
610 - Medicine & health
700 - The arts; fine & decorative arts
56
333 - Economics of land & energy
38
000 - Computer science, information & general works
34
600 - Technology
33
140 - Specific philosophical schools
30
620 - Engineering & allied operations
26
580 - Plants (Botany)
25
363 - Other social problems & services
21
380 - Commerce, communications & transportation
20
900 - History & geography
17
330 - Economics
12
630 - Agriculture & related technologies
10
540 - Chemistry & allied sciences
9
304 - Factors affecting social behavior
7
576 - Genetics & evolution
5
612 - Human physiology
5
720 - Architecture
5
320 - Political science
4
370 - Education
4
400 - Language
4
530 - Physics
4
800 - Literature & rhetoric
4
340 - Law
3
500 - Natural sciences & mathematics
3
551 - Geology, hydrology & meteorology
3
581 - Specific topics in natural history
3
170 - Ethics
2
300 - Social sciences
2
414 - Phonology & phonetics
2
658 - General management
2
100 - Philosophy & psychology
1
550 - Earth sciences
1
615 - Pharmacology & therapeutics
1
780 - Music
1