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Title: Atmospheric inputs of phosphorus to southern Lake Huron, April-October 1975 / by Richard G. Delumyea and Resy L. Petel.
Author:  Delumyea, Richard G.
Publication info: Duluth, Minn., Springfield, Va.. Environmental Protection Agency, Office of Research and Development, Environmental Research Laboratory, [for sale by the] National Technical Information Service. [1977]
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