Search Results for the EPA National Library Catalog

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Your Search: (SUBJECT=Water Pollution Erie Lake Watershed Congresses)


 
 
 
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Proceedings : third Meeting in the Matter of Pollution of Lake Erie and its Tributaries : Cleveland, June 22, 1966. 1966
Proceedings. Progress evaluation meeting: pollution of Lake Erie and its tributaries: Indiana, Michigan, New York, Ohio, Pennsylvania : June 4, 1968, Cleveland, Ohio. 1969
Progress evaluation meeting in the matter of pollution of Lake Erie and its tributaries (Indiana - Michigan - New York - Ohio - Pennsylvania) : Sheraton-Cleveland Hotel, Cleveland, Ohio, June 27, 1969 1969

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