Classification
380 - Commerce, communications & transportation
580 - Plants (Botany)
610 - Medicine & health
700 - The arts; fine & decorative arts
31
000 - Computer science, information & general works
26
333 - Economics of land & energy
25
363 - Other social problems & services
22
140 - Specific philosophical schools
21
600 - Technology
15
620 - Engineering & allied operations
15
576 - Genetics & evolution
10
551 - Geology, hydrology & meteorology
8
612 - Human physiology
8
630 - Agriculture & related technologies
8
900 - History & geography
8
540 - Chemistry & allied sciences
7
370 - Education
6
300 - Social sciences
5
340 - Law
5
500 - Natural sciences & mathematics
5
170 - Ethics
4
330 - Economics
4
414 - Phonology & phonetics
4
581 - Specific topics in natural history
4
615 - Pharmacology & therapeutics
4
304 - Factors affecting social behavior
3
720 - Architecture
3
800 - Literature & rhetoric
3
100 - Philosophy & psychology
2
400 - Language
2
658 - General management
2
657 - Accounting
1
780 - Music
1