Dyfyniad APA

Swan, M., & Walter, C. (2011). Oxford english grammar course: Advanced. Oxford (New York): Oxford University Press.

Dyfyniad Arddull Chicago

Swan, Michael, và Catherine Walter. Oxford English Grammar Course: Advanced. Oxford (New York): Oxford University Press, 2011.

Dyfyniad MLA

Swan, Michael, và Catherine Walter. Oxford English Grammar Course: Advanced. Oxford (New York): Oxford University Press, 2011.

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