Dyfyniad APA

Grussendorf, M. (2007). English for presentations. New York: Oxford University Press.

Dyfyniad Arddull Chicago

Grussendorf, Marion. English for Presentations. New York: Oxford University Press, 2007.

Dyfyniad MLA

Grussendorf, Marion. English for Presentations. New York: Oxford University Press, 2007.

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