Gaya APA

Gagne, R, M., Briggs, L, J. (1979). Principles of instructional design (2nd ed). New York: Holt, Rinehart and Winston.

Gaya MLA

Gagne, Robert, M.., Briggs, Leslie, J.. "Principles of instructional design". 2nd ed New York: Holt, Rinehart and Winston, 1979. Text.