Classification
333 - Economics of land & energy
2
414 - Phonology & phonetics
576 - Genetics & evolution
2
600 - Technology
2
000 - Computer science, information & general works
1
330 - Economics
1
363 - Other social problems & services
1
400 - Language
1
620 - Engineering & allied operations
1
700 - The arts; fine & decorative arts
1
720 - Architecture
1