Dyfyniad APA

Dellar, H., & Walkley, A. (2010). Outcomes Upper Intermediate. Heinle Cengage Learning.

Dyfyniad Arddull Chicago

Dellar, Hugh, and Andrew Walkley. Outcomes Upper Intermediate. [Hampshire]: Heinle Cengage Learning, 2010.

Dyfyniad MLA

Dellar, Hugh, and Andrew Walkley. Outcomes Upper Intermediate. Heinle Cengage Learning, 2010.

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