Dyfyniad APA

Dellar, H., & Walkley, A. (2012). Outcomes Advanced. Heinle Cengage Learning.

Dyfyniad Arddull Chicago

Dellar, Hugh, and Andrew Walkley. Outcomes Advanced. [Hampshire]: Heinle Cengage Learning, 2012.

Dyfyniad MLA

Dellar, Hugh, and Andrew Walkley. Outcomes Advanced. Heinle Cengage Learning, 2012.

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