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1. Upper Auglaize Watershed AGNPS Modeling Project : final report (id:38801)

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2. Economics of water quality protection from nonpoint sources : theory and practice (id:33401)

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3. Nonpoint-source pollution issues : January 1990-November 1994 (id:7077366)

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4. Voluntary incentives for reducing agricultural nonpoint source water pollution (id:33019)

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5. Agriculture, agricultural chemicals, and water quality (id:IND20394089)

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6. Agricultural air emissions effects on water quality (id:7084375)