O’Connor, J. D. (1980). Better English pronunciation (2nd ed.). New York: Cambridge University Press.
Trích dẫn kiểu ChicagoO’Connor, J. D. Better English Pronunciation. 2nd ed. New York: Cambridge University Press, 1980.
Deismireacht MLAO’Connor, J. D. Better English Pronunciation. 2nd ed. New York: Cambridge University Press, 1980.
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