Classification
000 - Computer science, information & general works
1
333 - Economics of land & energy
410 - Linguistics
1
551 - Geology, hydrology & meteorology
1
581 - Specific topics in natural history
600 - Technology
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1
700 - The arts; fine & decorative arts