Não informado. (1967). Tesol quarterly: Teachers of english to speakers of other languages. Georgetown University, Institute of Languages and Linguistics.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Não informado. Tesol Quarterly: Teachers of English to Speakers of Other Languages. Washington: Georgetown University, Institute of Languages and Linguistics, 1967.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Não informado. Tesol Quarterly: Teachers of English to Speakers of Other Languages. Georgetown University, Institute of Languages and Linguistics, 1967.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.