Dyfyniad APA

Roach, P. (1991). English Phonetics and Phonology: A Practical Course. Cambridge: Cambridge University.

Dyfyniad Arddull Chicago

Roach, Peter. English Phonetics and Phonology: A Practical Course. Cambridge: Cambridge University, 1991.

Dyfyniad MLA

Roach, Peter. English Phonetics and Phonology: A Practical Course. Cambridge: Cambridge University, 1991.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.