United States. Army. Corps of Engineers. Seattle District. (1992). Wetland plants of the Pacific Northwest. US Army Corps of Engineers, Seattle District.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUnited States. Army. Corps of Engineers. Seattle District. Wetland Plants of the Pacific Northwest. [Seattle, Wash.?]: US Army Corps of Engineers, Seattle District, 1992.
एमएलए (8वां संस्करण) प्रशस्ति पत्रUnited States. Army. Corps of Engineers. Seattle District. Wetland Plants of the Pacific Northwest. US Army Corps of Engineers, Seattle District, 1992.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.