Dyfyniad APA

Catford, J. C. (1988). A practical introduction to phonetics. Clarendon Press.

Dyfyniad Arddull Chicago

Catford, John Cunnison. A Practical Introduction to Phonetics. Oxford: Clarendon Press, 1988.

Dyfyniad MLA

Catford, John Cunnison. A Practical Introduction to Phonetics. Clarendon Press, 1988.

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