Ludlow, F. H. (1871). The heart of the continent: A record of travel across the plains and in Oregon, with an examination of the Mormon principle. Hurd & Houghton.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Ludlow, Fitz Hugh. The Heart of the Continent: A Record of Travel Across the Plains and in Oregon, with an Examination of the Mormon Principle. New York: Hurd & Houghton, 1871.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Ludlow, Fitz Hugh. The Heart of the Continent: A Record of Travel Across the Plains and in Oregon, with an Examination of the Mormon Principle. Hurd & Houghton, 1871.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.