Heinich, R., Molenda, M., & Russell, J. D. (1989). Instructional media and the new technologies of instruction (3rd ed.). Macmillan.
Chicago-viite (17. p.)Heinich, Robert, Michael Molenda, ja James D. Russell. Instructional Media and the New Technologies of Instruction. 3rd ed. New Yok: Macmillan, 1989.
MLA-viite (9. p.)Heinich, Robert, et al. Instructional Media and the New Technologies of Instruction. 3rd ed. Macmillan, 1989.
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