United States. Department of the Interior & United States. National Park Service. Rivers, Trails, and Conservation Assistance Program. (2004). Logical lasting launches: Design guidance for canoe and kayak launches. National Park Service, U.S. Dept. of the Interior.
Chicago Style (17th ed.) CitationUnited States. Department of the Interior and Trails United States. National Park Service. Rivers. Logical Lasting Launches: Design Guidance for Canoe and Kayak Launches. [Washington D.C.]: National Park Service, U.S. Dept. of the Interior, 2004.
MLA (9th ed.) CitationUnited States. Department of the Interior and Trails United States. National Park Service. Rivers. Logical Lasting Launches: Design Guidance for Canoe and Kayak Launches. National Park Service, U.S. Dept. of the Interior, 2004.