APA (7th ed.) Citation

World Book, Inc. (2001). The World book atlas. World Book.

Chicago Style (17th ed.) Citation

World Book, Inc. The World Book Atlas. Chicago, Ill: World Book, 2001.

MLA (9th ed.) Citation

World Book, Inc. The World Book Atlas. World Book, 2001.

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