Classification
400 - Language
410 - Linguistics
4
700 - The arts; fine & decorative arts
4
000 - Computer science, information & general works
3
580 - Plants (Botany)
3
610 - Medicine & health
3
140 - Specific philosophical schools
2
340 - Law
2
363 - Other social problems & services
2
370 - Education
2
380 - Commerce, communications & transportation
2
600 - Technology
2
620 - Engineering & allied operations
2
330 - Economics
1
333 - Economics of land & energy
1
414 - Phonology & phonetics
1
540 - Chemistry & allied sciences
1
630 - Agriculture & related technologies
1
800 - Literature & rhetoric
1