Dyfyniad APA

Acklam, R. (2000). First certificate gold: Coursebook. London: Pearson education.

Dyfyniad Arddull Chicago

Acklam, Richard. First Certificate Gold: Coursebook. London: Pearson education, 2000.

Dyfyniad MLA

Acklam, Richard. First Certificate Gold: Coursebook. London: Pearson education, 2000.

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