Dyfyniad APA

Walton Gary. (2010). History of the American Economy 11 ED (11th.). Cengage Learning.

Dyfyniad Arddull Chicago

Walton Gary. History of the American Economy 11 ED. 11th. USA: Cengage Learning, 2010.

Dyfyniad MLA

Walton Gary. History of the American Economy 11 ED. 11th. Cengage Learning, 2010.

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