prepared by U.S. Fish and Wildlife Service, Little Pend Oreille National Wildlife Refuge and U.S. Fish and Wildlife Service, Pacific Northwest Comprehensive Conservation Planning Team
prepared by U.S. Environmental Protection Agency, Region X ; prepared with the assistance of Engineering-Science, Inc. [and] Socio-Economic Systems, Inc
prepared jointly by Environmental Protection Agency, Region X, Municipality of Metropolitan Seattle, Washington State Department of Ecology ; with the assistance of James M. Montgomery, Consulting Engineers, Inc