Carlson, B. W., & Ginglend, D. R. (1961). Play activities for the retarded child: How to help him grow and learn through music, games, handicraft, and other play activities. Abingdon Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Carlson, Bernice Wells, و David R. Ginglend. Play Activities for the Retarded Child: How to Help Him Grow and Learn Through Music, Games, Handicraft, and Other Play Activities. New York: Abingdon Press, 1961.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Carlson, Bernice Wells, و David R. Ginglend. Play Activities for the Retarded Child: How to Help Him Grow and Learn Through Music, Games, Handicraft, and Other Play Activities. Abingdon Press, 1961.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.