Judy B Gilbert. (1993). Clear speech - student's book: Pronunciation and listening comprehension in North American English. Cambridge, UK: Cambridge University Press.
Styl cytowania ChicagoJudy B Gilbert. Clear Speech - Student's Book: Pronunciation and Listening Comprehension in North American English. Cambridge, UK: Cambridge University Press, 1993.
Styl cytowania MLAJudy B Gilbert. Clear Speech - Student's Book: Pronunciation and Listening Comprehension in North American English. Cambridge, UK: Cambridge University Press, 1993.
Uwaga: Te cytaty mogą odróżniać się od wytycznej twojego fakultetu..