Παραπομπή APA

Roach, P. English phonetics and phonology: A practical course (4th ed.). Cambridge University Press.

Παραπομπή Chicago Style

Roach, Peter. English Phonetics and Phonology: A Practical Course. 4th ed. New York: Cambridge University Press.

Παραπομπή MLA

Roach, Peter. English Phonetics and Phonology: A Practical Course. 4th ed. Cambridge University Press.