Gagne, E. D., Yekovich, C. W., & Yekovich, F. R. (1993). The cognitive psychology of school learning (2nd ed.). HarperCollins College Publishers.
Citação norma ChicagoGagne, Ellen D., Carol Walker Yekovich, and Frank R. Yekovich. The Cognitive Psychology of School Learning. 2nd ed. New York: HarperCollins College Publishers, 1993.
Citação norma MLAGagne, Ellen D., et al. The Cognitive Psychology of School Learning. 2nd ed. HarperCollins College Publishers, 1993.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.