Comparison of catch between 3 x 6 and 2 x 4 fyke nets on Upper Mississippi River backwater lakes [electronic resource] / by Scott A. Gritters ; prepared for U.S. Geological Survey, Environmental Management Technical Center.
Imprint
Onalaska, Wis. : U.S. Geological Survey, Environmental Management Technical Center, [1997]
"This PDF file may appear differently from the printed report because of slight variations incurred by electronic transmission. The substance of the report remains unchanged."