Classification
600 - Technology
7
620 - Engineering & allied operations
3
700 - The arts; fine & decorative arts
3
900 - History & geography
3
000 - Computer science, information & general works
2
380 - Commerce, communications & transportation
2
576 - Genetics & evolution
2
363 - Other social problems & services
1
414 - Phonology & phonetics
1
540 - Chemistry & allied sciences
1
630 - Agriculture & related technologies
1