Dyfyniad APA

Day, J., & Jeremy Day. (2014). Unlock: Listening and speaking skills. Cambridge: Cambridge University Press.

Dyfyniad Arddull Chicago

Day, Jeremy, và Jeremy Day. Unlock: Listening and Speaking Skills. Cambridge: Cambridge University Press, 2014.

Dyfyniad MLA

Day, Jeremy, và Jeremy Day. Unlock: Listening and Speaking Skills. Cambridge: Cambridge University Press, 2014.

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