Cita APA (7th ed.)

Martorell, G., Papalia, D. E., & Feldman, R. D. (2014). A child's world: Infancy through adolescence (Thirteenth Edition.). McGraw-Hill Education.

Cita Chicago (17th ed.)

Martorell, Gabriela, Diane E. Papalia, i Ruth Duskin Feldman. A Child's World: Infancy Through Adolescence. Thirteenth Edition. New York, NY: McGraw-Hill Education, 2014.

Cita MLA (9th ed.)

Martorell, Gabriela, et al. A Child's World: Infancy Through Adolescence. Thirteenth Edition. McGraw-Hill Education, 2014.