Cita APA (7th ed.)

THE WORLD BOOK. (2007). The world encyclodia Q-R volume 16. World Book.

Cita Chicago (17th ed.)

THE WORLD BOOK. The World Encyclodia Q-R Volume 16. Chicago: World Book, 2007.

Cita MLA (9th ed.)

THE WORLD BOOK. The World Encyclodia Q-R Volume 16. World Book, 2007.