Classification
340 - Law
600 - Technology
3
414 - Phonology & phonetics
2
576 - Genetics & evolution
2
620 - Engineering & allied operations
2
700 - The arts; fine & decorative arts
2
900 - History & geography
2
000 - Computer science, information & general works
1
140 - Specific philosophical schools
1
400 - Language
1
530 - Physics
1