Classification
000 - Computer science, information & general works
2
361 - Social problems & social welfare in general
580 - Plants (Botany)
900 - History & geography
333 - Economics of land & energy
1
414 - Phonology & phonetics
1
551 - Geology, hydrology & meteorology
1
600 - Technology
1
610 - Medicine & health
1
612 - Human physiology
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1
700 - The arts; fine & decorative arts
1