Heinich, R., Molenda, M., & Russell, J. D. (1989). Instructional media and the new technologies of instruction (3rd ed.). Macmillan.
Citazione stile Chigago Style (17a edizione)Heinich, Robert, Michael Molenda, e James D. Russell. Instructional Media and the New Technologies of Instruction. 3rd ed. New York: Macmillan, 1989.
Citatione MLA (9a ed.)Heinich, Robert, et al. Instructional Media and the New Technologies of Instruction. 3rd ed. Macmillan, 1989.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.