Gilbert, J. Clear Speech. Cambridge: Cambridge University Press, 1993 132 p.,il. 0-521-42118-7.
Gilbert, J. Clear Speech. Cambridge: Cambridge University Press, 1993 132 p.,il. 0-521-42118-7.
Gilbert, J. (1993) Clear Speech, Cambridge: Cambridge University Press 132 p.,il. 0-521-42118-7.
Gilbert, J. (1993). Clear Speech. Pronunciation and Listening Comprehension in North American English - Student's Book. Cambridge: Cambridge University Press, 132 p.,il.
Gilbert J. Clear Speech: Pronunciation and Listening Comprehension in North American English - Student's Book. Cambridge: Cambridge University Press; 1993. p. 132 p.,il. ISBN: 0-521-42118-7.