Não informado. (1979). Educational communication and technology. Association for Educational Communications and Technology.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Não informado. Educational Communication and Technology. Washington: Association for Educational Communications and Technology, 1979.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Não informado. Educational Communication and Technology. Association for Educational Communications and Technology, 1979.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.