by Frank Leverett
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Moraines and shore lines of the Lake Sup...
The water resources of Illinois
The Pleistocene Features and Deposits of...
Glacial formations and drainage features...
The Pensacola terrace and associated bea...
Danville folio, Illinois-Indiana
Nuclear waste
Hazardous waste
Snow Falling on Cedars
Pesticides
Status of ground-water resources at U.S....
Hydrologic data, 1964