(2009). L'encyclopedie decouverte de world book. World Book.
Cita Chicago (17th ed.)L'encyclopedie Decouverte De World Book. World Book, 2009.
Cita MLA (9th ed.)L'encyclopedie Decouverte De World Book. World Book, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.