Sage, R. B. (1956). Rufus B. Sage: his letters and papers, 1836-1847: With an annotated reprint of his "Scenes in the Rocky Mountains, and in Oregon, California, New Mexico, Texas, and the Grand Prairies.". A. H. Clark Co..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Sage, Rufus B. Rufus B. Sage: His Letters and Papers, 1836-1847: With an Annotated Reprint of His "Scenes in the Rocky Mountains, and in Oregon, California, New Mexico, Texas, and the Grand Prairies.". Glendale, Calif.: A. H. Clark Co., 1956.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Sage, Rufus B. Rufus B. Sage: His Letters and Papers, 1836-1847: With an Annotated Reprint of His "Scenes in the Rocky Mountains, and in Oregon, California, New Mexico, Texas, and the Grand Prairies.". A. H. Clark Co., 1956.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.