Search Results for the EPA National Library Catalog

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Your Search: (AUTHOR=Ryder AND Richard AND A.)


 
 
 
Select Item Title Year Published
A Conceptual approach for the application of biological indicators of ecosystem quality in the Great Lakes Basin : a joint effort of the International Joint Commission and the Great Lakes Fishery Commission / 1985
Indexed bibliography of North American Stizostedion (Pisces, Percidae) species 1970
The ecology and management of the walleye in western Lake Erie, 1969

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