Dyfyniad APA

Cusack, B. (2007). Listening and speaking skills. Oxford: Macmillan.

Dyfyniad Arddull Chicago

Cusack, Barry. Listening and Speaking Skills. Oxford: Macmillan, 2007.

Dyfyniad MLA

Cusack, Barry. Listening and Speaking Skills. Oxford: Macmillan, 2007.

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