Dyfyniad APA
Roach, P. (1991). English phonetics and phonology: A self-contained, comprehensive pronunciation course (2nd ed.). Cambridge University Press.
Dyfyniad Arddull Chicago
Roach, Peter. English Phonetics and Phonology: A Self-contained, Comprehensive Pronunciation Course. 2nd ed. Cambridge: Cambridge University Press, 1991.
Dyfyniad MLA
Roach, Peter. English Phonetics and Phonology: A Self-contained, Comprehensive Pronunciation Course. 2nd ed. Cambridge University Press, 1991.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.