United States. Army. Corps of Engineers. Seattle District. (1992). Wetland plants of the Pacific Northwest. US Army Corps of Engineers, Seattle District.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)United States. Army. Corps of Engineers. Seattle District. Wetland Plants of the Pacific Northwest. [Seattle, Wash.?]: US Army Corps of Engineers, Seattle District, 1992.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)United States. Army. Corps of Engineers. Seattle District. Wetland Plants of the Pacific Northwest. US Army Corps of Engineers, Seattle District, 1992.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.