Não informado. (1989). Educational Technology Research and Development. Association for Educational Communications and Technology.
Style de citation Chicago (17e éd.)Não informado. Educational Technology Research and Development. Washington: Association for Educational Communications and Technology, 1989.
Style de citation MLA (8e éd.)Não informado. Educational Technology Research and Development. Association for Educational Communications and Technology, 1989.
Attention : ces citations peuvent ne pas être correctes à 100%.