Classification
000 - Computer science, information & general works
2
363 - Other social problems & services
2
364 - Criminology
380 - Commerce, communications & transportation
610 - Medicine & health
304 - Factors affecting social behavior
1
333 - Economics of land & energy
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
581 - Specific topics in natural history
1
600 - Technology
1
658 - General management
1
800 - Literature & rhetoric
1
900 - History & geography
1