Oregon Historical Society, Peabody Museum of Archaeology and Ethnology, Vaughan, T., & Holm, B. (1982). Soft gold: The fur trade & cultural exchange on the northwest coast of America. Oregon Historical Society.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Oregon Historical Society, Peabody Museum of Archaeology and Ethnology, Thomas Vaughan, و Bill Holm. Soft Gold: The Fur Trade & Cultural Exchange on the Northwest Coast of America. [Portland]: Oregon Historical Society, 1982.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Oregon Historical Society, et al. Soft Gold: The Fur Trade & Cultural Exchange on the Northwest Coast of America. Oregon Historical Society, 1982.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.