Não informado. (1979). Educational communication and technology. Association for Educational Communications and Technology.
Style de citation Chicago (17e éd.)Não informado. Educational Communication and Technology. Washington: Association for Educational Communications and Technology, 1979.
Style de citation MLA (8e éd.)Não informado. Educational Communication and Technology. Association for Educational Communications and Technology, 1979.
Attention : ces citations peuvent ne pas être correctes à 100%.