Trumbul, C. H. (1901). Individual work for Individuals: A record of peersonal experiences and convictions. Young men's Christian Associaton Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Trumbul, Clay H. Individual Work for Individuals: A Record of Peersonal Experiences and Convictions. New York: Young men's Christian Associaton Press, 1901.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Trumbul, Clay H. Individual Work for Individuals: A Record of Peersonal Experiences and Convictions. Young men's Christian Associaton Press, 1901.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.