Classification
000 - Computer science, information & general works
7
140 - Specific philosophical schools
8
304 - Factors affecting social behavior
2
320 - Political science
5
330 - Economics
333 - Economics of land & energy
12
363 - Other social problems & services
7
370 - Education
4
380 - Commerce, communications & transportation
400 - Language
2
414 - Phonology & phonetics
1
500 - Natural sciences & mathematics
3
551 - Geology, hydrology & meteorology
4
576 - Genetics & evolution
3
600 - Technology
610 - Medicine & health
620 - Engineering & allied operations
6
658 - General management
4
700 - The arts; fine & decorative arts
720 - Architecture
4
800 - Literature & rhetoric
4
900 - History & geography
9