Gilbert, J. B. (1986). Clear Speech: Pronunciation and Listening Comprehension in American English, Student's Book. London: Cambridge University Press.
Chicago-стиль цитированияGilbert, Judy B. Clear Speech: Pronunciation and Listening Comprehension in American English, Student's Book. London: Cambridge University Press, 1986.
MLA-цитированиеGilbert, Judy B. Clear Speech: Pronunciation and Listening Comprehension in American English, Student's Book. London: Cambridge University Press, 1986.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.