Jewell, P. A. (1966). Play, exploration and territory in mammals: The proceedings of a symposium held at the Zoological Society of London on 19 and 20 November 1965 ([U.S. ed.). Academic Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Jewell, Peter Arundel. Play, Exploration and Territory in Mammals: The Proceedings of a Symposium Held at the Zoological Society of London on 19 and 20 November 1965. [U.S. ed. New York]: Academic Press, 1966.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Jewell, Peter Arundel. Play, Exploration and Territory in Mammals: The Proceedings of a Symposium Held at the Zoological Society of London on 19 and 20 November 1965. [U.S. ed. Academic Press, 1966.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.