U.S. Fish and Wildlife Service. Division of Planning and Visitor Services. (2006). Tualatin River National Wildlife Refuge proposed Wapato Lake Unit: Draft land conservation plan and environmental assessment, Washington and Yamhill Counties, Oregon. U.S. Fish and Wildlife Service.
Chicago Style (17th ed.) CitationU.S. Fish and Wildlife Service. Division of Planning and Visitor Services. Tualatin River National Wildlife Refuge Proposed Wapato Lake Unit: Draft Land Conservation Plan and Environmental Assessment, Washington and Yamhill Counties, Oregon. Portland, Or.: U.S. Fish and Wildlife Service, 2006.
MLA (9th ed.) CitationU.S. Fish and Wildlife Service. Division of Planning and Visitor Services. Tualatin River National Wildlife Refuge Proposed Wapato Lake Unit: Draft Land Conservation Plan and Environmental Assessment, Washington and Yamhill Counties, Oregon. U.S. Fish and Wildlife Service, 2006.