Association for Educational and Training Technology. (1989). International yearbook of educational and training technology. Kogan Page.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Association for Educational and Training Technology. International Yearbook of Educational and Training Technology. London: Kogan Page, 1989.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Association for Educational and Training Technology. International Yearbook of Educational and Training Technology. Kogan Page, 1989.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.