Classification
000 - Computer science, information & general works
6
140 - Specific philosophical schools
3
300 - Social sciences
3
304 - Factors affecting social behavior
4
330 - Economics
1
333 - Economics of land & energy
10
363 - Other social problems & services
380 - Commerce, communications & transportation
5
414 - Phonology & phonetics
500 - Natural sciences & mathematics
3
540 - Chemistry & allied sciences
3
551 - Geology, hydrology & meteorology
5
576 - Genetics & evolution
6
580 - Plants (Botany)
9
581 - Specific topics in natural history
3
600 - Technology
7
610 - Medicine & health
6
612 - Human physiology
3
615 - Pharmacology & therapeutics
1
620 - Engineering & allied operations
10
630 - Agriculture & related technologies
1
700 - The arts; fine & decorative arts
11
720 - Architecture
1
800 - Literature & rhetoric
1
900 - History & geography
6