Classification
414 - Phonology & phonetics
410 - Linguistics
28
400 - Language
23
900 - History & geography
5
370 - Education
3
380 - Commerce, communications & transportation
3
333 - Economics of land & energy
2
700 - The arts; fine & decorative arts
2
100 - Philosophy & psychology
1
140 - Specific philosophical schools
1
300 - Social sciences
1
301 - Sociology & anthropology
1
610 - Medicine & health
1
780 - Music
1