Gaya APA

Gagne, R, M, 1., Briggs, L, J. (1979). Principels of instructional design (2nd.ed.). New York: .

Gaya MLA

Gagne, Robert, Mills,, 1916., Briggs, Leslie, J. "Principels of instructional design". 2nd.ed. New York: , 1979. Text.