Townsend, J. K. (1839). Narrative of a journey across the Rocky mountains, to the Columbia river: And a visit to the Sandwich islands, Chili, &c.; with a scientific appendix. H. Perkins.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Townsend, John Kirk. Narrative of a Journey Across the Rocky Mountains, to the Columbia River: And a Visit to the Sandwich Islands, Chili, &c.; with a Scientific Appendix. Philadelphia: H. Perkins, 1839.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Townsend, John Kirk. Narrative of a Journey Across the Rocky Mountains, to the Columbia River: And a Visit to the Sandwich Islands, Chili, &c.; with a Scientific Appendix. H. Perkins, 1839.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.