Heinich, R., & Molenda, M. (1993). Instructional media and the new technologies of instruction. Macmillan.
Lua i Stíl Chicago (17ú heag.)Heinich, Robert, agus Michael Molenda. Instructional Media and the New Technologies of Instruction. New York: Macmillan, 1993.
Lua MLA (9ú heag.)Heinich, Robert, agus Michael Molenda. Instructional Media and the New Technologies of Instruction. Macmillan, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.