Simpson, David
The politics of American English, 1776-1850i
Oxford University Press , 1986
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Kenyon, John Samuel
A pronouncing dictionary of American English
Merriam-Webster ; G. & C. Merriam Co., 1953
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Lutz, William D.
The cambridge thesaurus of American English
Cambridge University Press, 1994
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Wolfram, Walt, 1941-
American English: dialects and variation
Wiley Balckwell, 2016
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Pike, Kenneth Lee, 1912-2000
The Intonation of American English
University of Michigan Press, 1945
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