Classification
410 - Linguistics
400 - Language
13
700 - The arts; fine & decorative arts
12
380 - Commerce, communications & transportation
10
363 - Other social problems & services
9
000 - Computer science, information & general works
8
330 - Economics
8
333 - Economics of land & energy
8
320 - Political science
7
414 - Phonology & phonetics
7
600 - Technology
7
140 - Specific philosophical schools
5
500 - Natural sciences & mathematics
5
610 - Medicine & health
5
900 - History & geography
5
340 - Law
4
576 - Genetics & evolution
4
620 - Engineering & allied operations
4
200 - Religion
3
370 - Education
3
580 - Plants (Botany)
3
800 - Literature & rhetoric
3
100 - Philosophy & psychology
2
304 - Factors affecting social behavior
2
581 - Specific topics in natural history
2
658 - General management
2
160 - Logic
1
780 - Music
1