TY - BOOK AU - Ingle,Henry T TI - Communication media and technology: a look at their role in non-formal education programs T2 - Information Center on Instructional Technology. Information bulletin U1 - 371.3078 PY - 1974/// CY - Washington, DC. PB - Information Center on Instructional Technology KW - Materiales de enseñanza KW - Tecnología educativa N1 - Incluye bibliografía ER -