Não informado. (1985). TechTrends. Association for Educational Communications and Technology.
Chicago-referens (17:e uppl.)Não informado. TechTrends. Washington: Association for Educational Communications and Technology, 1985.
MLA-referens (8:e uppl.)Não informado. TechTrends. Association for Educational Communications and Technology, 1985.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.