APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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

Warning: These citations may not always be 100% accurate.