Gaya APA

Swanson, C, P., Gagne, R, M. (1979). Principles of instruction design . New York: New York: Holt, Renegard and Wiston; 1979.

Gaya MLA

Swanson, Carl, P.., Gagne, Robert, M.. "Principles of instruction design". New York: New York: Holt, Renegard and Wiston; 1979, 1979. Text.