Dyfyniad APA

Ferguson, N. (2005). Colossus: The rise and fall of the American empire. Penguin Books.

Dyfyniad Arddull Chicago

Ferguson, Niall. Colossus: The Rise and Fall of the American Empire. New York: Penguin Books, 2005.

Dyfyniad MLA

Ferguson, Niall. Colossus: The Rise and Fall of the American Empire. Penguin Books, 2005.

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