Cita APA

World Book, I. (2004). The World Book encyclopedia. Chicago, Illinois: World Book.

Chicago Style Citation

World Book, Inc. The World Book Encyclopedia. Chicago, Illinois: World Book, 2004.

Cita MLA

World Book, Inc. The World Book Encyclopedia. Chicago, Illinois: World Book, 2004.

Atenció: Aquestes cites poden no estar 100% correctes.