Classification
000 - Computer science, information & general works
2
304 - Factors affecting social behavior
576 - Genetics & evolution
330 - Economics
1
363 - Other social problems & services
1
500 - Natural sciences & mathematics
1
600 - Technology
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
700 - The arts; fine & decorative arts
1
800 - Literature & rhetoric
1
900 - History & geography
1