Cita APA

Heinich, R., Molenda, M., & Russell, J. D. (1989). Instructional media and the new technologies of instruction (3.).

Chicago Edition Citation

Heinich, Robert, Michael Molenda, i James D. Russell. Instructional Media and the New Technologies of Instruction. 3. New York, MacMillan Publishing, 1989.

Cita MLA

Heinich, Robert, et al. Instructional Media and the New Technologies of Instruction. 3. 1989.