Heinich, R., Molenda, M., & Russell, J. D. (1986). Instructional media and the new technologies of instruction (2nd ed.). Wiley.
Dyfyniad Arddull ChicagoHeinich, Robert, Michael Molenda, and James D. Russell. Instructional Media and the New Technologies of Instruction. 2nd ed. New York: Wiley, 1986.
Dyfyniad MLAHeinich, Robert, et al. Instructional Media and the New Technologies of Instruction. 2nd ed. Wiley, 1986.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.