Harvard University. Graduate School of Education. (1985). The Harvard education letter. Published by the Harvard Graduate School of Education in association with Harvard University Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Harvard University. Graduate School of Education. The Harvard Education Letter. [Cambridge, MA]: Published by the Harvard Graduate School of Education in association with Harvard University Press, 1985.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Harvard University. Graduate School of Education. The Harvard Education Letter. Published by the Harvard Graduate School of Education in association with Harvard University Press, 1985.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.