Gaya APA

Cocking, I, E, S, R, R. (1977). Cognitive Development from Childhood to Adolescence: A Constructivist Perspective . New York: Holt, Rinehart and Winston, Inc..

Gaya MLA

Cocking, Irving, E, Sigel, Rodney, R. "Cognitive Development from Childhood to Adolescence: A Constructivist Perspective". New York: Holt, Rinehart and Winston, Inc., 1977. .