Benson, L. B., & Ernst, C. F. (1938). A survey of Spokane, County, Washington: Based on material obtained through the Spokane County Advisory Committee and from sources in Olympia (Rev., 1938.). [s.n.].
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Benson, Lucile B., و Charles F. Ernst. A Survey of Spokane, County, Washington: Based on Material Obtained Through the Spokane County Advisory Committee and from Sources in Olympia. Rev., 1938. Olympia, Wash.: [s.n.], 1938.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Benson, Lucile B., و Charles F. Ernst. A Survey of Spokane, County, Washington: Based on Material Obtained Through the Spokane County Advisory Committee and from Sources in Olympia. Rev., 1938. [s.n.], 1938.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.