Não informado. (1979). Educational communication and technology. Association for Educational Communications and Technology.
Chicago-viite (17. p.)Não informado. Educational Communication and Technology. Washington: Association for Educational Communications and Technology, 1979.
MLA-viite (8. p.)Não informado. Educational Communication and Technology. Association for Educational Communications and Technology, 1979.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.