Twain, M., & Cardwell, G. (1984). The innocents abroad: Roughing it. Literary Classics of the U.S. : Distributed to the trade in the U.S. and Canada by the Viking Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Twain, Mark, و Guy Cardwell. The Innocents Abroad: Roughing It. New York: Literary Classics of the U.S. : Distributed to the trade in the U.S. and Canada by the Viking Press, 1984.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Twain, Mark, و Guy Cardwell. The Innocents Abroad: Roughing It. Literary Classics of the U.S. : Distributed to the trade in the U.S. and Canada by the Viking Press, 1984.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.