Classification
414 - Phonology & phonetics
580 - Plants (Botany)
581 - Specific topics in natural history
2
610 - Medicine & health
2
700 - The arts; fine & decorative arts
2
900 - History & geography
2
000 - Computer science, information & general works
1
140 - Specific philosophical schools
1
333 - Economics of land & energy
1
576 - Genetics & evolution
1
600 - Technology
1