Não informado. (1980). Instructional innovator. Association for Educational Communications and Technology.
Chicago-referens (17:e uppl.)Não informado. Instructional Innovator. Washington: Association for Educational Communications and Technology, 1980.
MLA-referens (8:e uppl.)Não informado. Instructional Innovator. Association for Educational Communications and Technology, 1980.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.