Gaya APA

Martorell, G. et al (2013). A Child's World: Infancy Through Adolescence 13th edition (13). New York: McGraw-Hill Education.

Gaya MLA

Martorell, Gabriela. et al. "A Child's World: Infancy Through Adolescence 13th edition". 13 New York: McGraw-Hill Education, 2013. Text.