APA (7th ed.) Citation

World Book, Inc. (2011). The World Book encyclopedia. World Book.

Chicago Style (17th ed.) Citation

World Book, Inc. The World Book Encyclopedia. Chicago: World Book, 2011.

MLA (9th ed.) Citation

World Book, Inc. The World Book Encyclopedia. World Book, 2011.

Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.