1
Published ©1985.
Subjects: '; ...Water Pollution Environmental aspects Congresses....

Report Number(s): APA 2722

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2
by Hill, Donley M.
Published 1971.
Subjects: '; ...Water Pollution Virginia....

Report Number(s): APA 1956

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3
by Cumming, Kenneth B.
Published 1971.
Subjects: '; ...Water Pollution Virginia....
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4
Subjects: '; ...Freshwater fishes Effect of water pollution on Pennsylvania Codorus Creek, West Branch....

Report Number(s): SUS 5010

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