American Educational Research Association & Travers, R. M. W. (1973). Second handbook of research on teaching: A project of the American Educational Research Association. Rand McNally.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)American Educational Research Association و Robert Morris William Travers. Second Handbook of Research on Teaching: A Project of the American Educational Research Association. Chicago: Rand McNally, 1973.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)American Educational Research Association و Robert Morris William Travers. Second Handbook of Research on Teaching: A Project of the American Educational Research Association. Rand McNally, 1973.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.