Roach, P. (1991). English Phonetics and Phonology: A Practical Course. Cambridge: Cambridge University.
Chicago Style aipamenaRoach, Peter. English Phonetics and Phonology: A Practical Course. Cambridge: Cambridge University, 1991.
MLA aipamenaRoach, Peter. English Phonetics and Phonology: A Practical Course. Cambridge: Cambridge University, 1991.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.