United States. Army. Corps of Engineers. Walla Walla District. (1998). Path of the salmon. U.S. Army. Corps of Engineers. Walla Walla District.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)United States. Army. Corps of Engineers. Walla Walla District. Path of the Salmon. Walla Walla, Wash.: U.S. Army. Corps of Engineers. Walla Walla District, 1998.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)United States. Army. Corps of Engineers. Walla Walla District. Path of the Salmon. U.S. Army. Corps of Engineers. Walla Walla District, 1998.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.