Postlethwait, S. N., Novak, J. D., & Murray, H. T. (1972). The audio-tutorial approach to learning, through independent study and integrated experiences (Third edition.). Burgess Pub. Co.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Postlethwait, Samuel N., Joseph Donald Novak, و Hallard Thomas Murray. The Audio-tutorial Approach to Learning, Through Independent Study and Integrated Experiences. Third edition. Minneapolis: Burgess Pub. Co, 1972.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Postlethwait, Samuel N., et al. The Audio-tutorial Approach to Learning, Through Independent Study and Integrated Experiences. Third edition. Burgess Pub. Co, 1972.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.