Classification
400 - Language
410 - Linguistics
414 - Phonology & phonetics
51
700 - The arts; fine & decorative arts
35
900 - History & geography
34
000 - Computer science, information & general works
11
380 - Commerce, communications & transportation
7
370 - Education
6
576 - Genetics & evolution
4
100 - Philosophy & psychology
3
800 - Literature & rhetoric
3
140 - Specific philosophical schools
2
333 - Economics of land & energy
2
340 - Law
2
600 - Technology
2
170 - Ethics
1
304 - Factors affecting social behavior
1
320 - Political science
1
330 - Economics
1
363 - Other social problems & services
1
620 - Engineering & allied operations
1
720 - Architecture
1