Dyfyniad APA

Oxenden, C., & Koenig, C. L. (2008). American English File: Student book 3. Oxford: Oxford Univ. Press.

Dyfyniad Arddull Chicago

Oxenden, Clive, và Christina Latham Koenig. American English File: Student Book 3. Oxford: Oxford Univ. Press, 2008.

Dyfyniad MLA

Oxenden, Clive, và Christina Latham Koenig. American English File: Student Book 3. Oxford: Oxford Univ. Press, 2008.

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