Dunn, W. R. (1965). A comparative study of the effects of programmed instruction and traditional teaching methods in certain school subjects.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Dunn, William R. A Comparative Study of the Effects of Programmed Instruction and Traditional Teaching Methods in Certain School Subjects. 1965.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Dunn, William R. A Comparative Study of the Effects of Programmed Instruction and Traditional Teaching Methods in Certain School Subjects. 1965.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.