Monitoring spawning gravel in managed forested watersheds : a proposed procedure

A. Shirazi and H. Lewis, Ecosystems Modeling and Analysis Branch, Corvallis Environmental Reseach Laboratory, and Wayne K. Seim, Department of Fisheries and Wildlife, Oregon State University.
Washington : Environmental Protection Agency, Office of Research and Development, Corvallis Environmental Research Laboratory ; Springfield, Va. : for sale by the National Technical Information Service, 1979.
Physical description
v, 14 p. : ill. ; 28 cm.
United States. Environmental Protection Agency. Ecological research series ; EPA-600/3-79-014.
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