Frémont, J. C., & Preuss, C. Topographical map of the road from Missouri to Oregon: Commencing at the mouth of the Kansas in the Missouri River and ending at the mouth of the Wallah Wallah in the Columbia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Frémont, John Charles, و Charles Preuss. Topographical Map of the Road from Missouri to Oregon: Commencing at the Mouth of the Kansas in the Missouri River and Ending at the Mouth of the Wallah Wallah in the Columbia. n.p.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Frémont, John Charles, و Charles Preuss. Topographical Map of the Road from Missouri to Oregon: Commencing at the Mouth of the Kansas in the Missouri River and Ending at the Mouth of the Wallah Wallah in the Columbia.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.