National Council of Teachers of English. Research in the teaching of English. [National Council of Teachers of English].
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)National Council of Teachers of English. Research in the Teaching of English. [Urbana, Ill., etc.]: [National Council of Teachers of English].
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)National Council of Teachers of English. Research in the Teaching of English. [National Council of Teachers of English].
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.