Dyfyniad APA

Roach, P. (2009). English phonetics and phonology: A practical course (4th ed.). UK: Cambridge University Press.

Dyfyniad Arddull Chicago

Roach, Peter. English Phonetics and Phonology: A Practical Course. 4th ed. UK: Cambridge University Press, 2009.

Dyfyniad MLA

Roach, Peter. English Phonetics and Phonology: A Practical Course. 4th ed. UK: Cambridge University Press, 2009.

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