Wandel, J. E. (1989). Use of internal speech in reading by hearing and hearing impaired students in oral, total communication, and cued speech programs.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Wandel, Jean E. Use of Internal Speech in Reading by Hearing and Hearing Impaired Students in Oral, Total Communication, and Cued Speech Programs. 1989.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Wandel, Jean E. Use of Internal Speech in Reading by Hearing and Hearing Impaired Students in Oral, Total Communication, and Cued Speech Programs. 1989.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.