Gaya APA

Mayes, L, C., Cohen, D, J. (2003). The Yale Child Study Center Guide to Understanding Your Child : Health Development from Birth to Adolescence . Boston: Little Brown and Company.

Gaya MLA

Mayes, Linda, C.., Cohen, Donald, J.. "The Yale Child Study Center Guide to Understanding Your Child : Health Development from Birth to Adolescence". Boston: Little Brown and Company, 2003. Text.