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020 _a0250403390
082 _a363.7394 ENV
245 _aEnvironmental impact of nonpoint source pollution / edited by Michael ROvercash, James MDavidson.
260 _aAnn Arbor, Mich: Ann Arbor Science, c1980.
300 _axii, 449 p: ill; 24 cm.
650 _aNonpoint source pollution Nonpoint source pollution--United States
_915351
999 _c15321
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