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