MacDavid, R. I., & Dil, A. S. (1980). Varieties of American English: Essays. Stanford University Press.
Cita Chicago Style (17a ed.)MacDavid, Raven Ioor, y Anwar S. Dil. Varieties of American English: Essays. Stanford (California): Stanford University Press, 1980.
Cita MLA (9a ed.)MacDavid, Raven Ioor, y Anwar S. Dil. Varieties of American English: Essays. Stanford University Press, 1980.
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