Cita APA (7a ed.)

THE WORLD BOOK.. (2007). The world book S-Sn volume 17. World Book.

Cita Chicago Style (17a ed.)

THE WORLD BOOK.. The World Book S-Sn Volume 17. Chicago: World Book, 2007.

Cita MLA (9a ed.)

THE WORLD BOOK.. The World Book S-Sn Volume 17. World Book, 2007.