Dyfyniad APA

Grussendorf, M. (2011). English for presentations: Express series. New York: Oxford University press.

Dyfyniad Arddull Chicago

Grussendorf, Marion. English for Presentations: Express Series. New York: Oxford University press, 2011.

Dyfyniad MLA

Grussendorf, Marion. English for Presentations: Express Series. New York: Oxford University press, 2011.

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