Sally Morgan. (2008). Great Junior Encyclopedia - Animal World (2013.). Parragon Publication.
Cita Chicago (17th ed.)Sally Morgan. Great Junior Encyclopedia - Animal World. 2013. Parragon Publication, 2008.
Cita MLA (9th ed.)Sally Morgan. Great Junior Encyclopedia - Animal World. 2013. Parragon Publication, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.