Washington, D.C. Center for Applied Linguistics. (1966). University resources in the United States for linguistics and teacher training in English as a foreign language ([5th rev. ed.). s.n.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Washington, D.C. Center for Applied Linguistics. University Resources in the United States for Linguistics and Teacher Training in English as a Foreign Language. [5th rev. ed. Washington]: s.n, 1966.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Washington, D.C. Center for Applied Linguistics. University Resources in the United States for Linguistics and Teacher Training in English as a Foreign Language. [5th rev. ed. s.n, 1966.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.