Classification
000 - Computer science, information & general works
330 - Economics
1
333 - Economics of land & energy
5
340 - Law
1
363 - Other social problems & services
1
380 - Commerce, communications & transportation
2
414 - Phonology & phonetics
1
530 - Physics
2
551 - Geology, hydrology & meteorology
2
600 - Technology
9
620 - Engineering & allied operations
9
700 - The arts; fine & decorative arts
6
800 - Literature & rhetoric
2
900 - History & geography