Gaya APA

Behrman, R, E., Kliegman, R, M. (2002). Nelson essentials of pediatrics (Ed. 4). USA: Saunders-Elsevier.

Gaya MLA

Behrman, Richard, E.., Kliegman, Robert, M.. "Nelson essentials of pediatrics". Ed. 4 USA: Saunders-Elsevier, 2002. Text.