APA (7th ed.) Zitazioa

World Book, Inc. (2011). World War II in Europe. World Book.

Chicago Style (17th ed.) Zitazioa

World Book, Inc. World War II in Europe. Chicago: World Book, 2011.

MLA (9th ed.) Zitazioa

World Book, Inc. World War II in Europe. World Book, 2011.

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