Proceedings of the National Wetland Protection Symposium, Reston, Virginia, June 6-8, 1977 - National Wetland Protection Symposium, 1977 : Reston, Va.); United States. Fish and Wildlife Service. Office of Biological Services; Biological Services Program (U.S.) (Washington, D.C. : United States Department of Interior, 1978)
Biological Services Program FWS/OBS-78/97
Includes bibliographies
Keywords: Wetland conservation -- United States -- Congresses