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Books by Mark A. Hardy

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2 books found
Chemical and biological quality of streams at the Indiana Dunes National Lakeshore, Indiana, 1978-80
Chemical and biological quality of streams at the Indiana D…
By: Mark A. Hardy
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Effects of coal fly-ash disposal on water quality in and around the Indiana Dunes National Lakeshore, Indiana
Effects of coal fly-ash disposal on water quality in and ar…
By: Mark A. Hardy
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