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1Published 1993Subjects: “...Wells United States....”
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2Published 1999Subjects: “...Coastal zone management United States....”
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3Published 1996Subjects: “...Wetland conservation United States....”
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4Published 1999Subjects: “...Water quality biological assessment United States....”
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5Published 1993Subjects: “...Agricultural laws and legislation United States....”
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6Published 1995Subjects: “...Licenses United States....”
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7Published 1997Subjects: “...Stream conservation United States....”
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8Published 1994Subjects: “...Watershed management United States....”
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9Published 1998Subjects: “...Beaches United States....”
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10Published 1995Subjects: “...Stream ecology United States....”
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11Published 1989Subjects: “...User charges United States....”
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12Published 1991Subjects: “...Water quality management United States....”
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13Published 2000Subjects: “...United States. Environmental Protection Agency. Office of Water....”
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14Published 1997Subjects: “...Sewage disposal plants United States....”
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15Published 1997Subjects: “...Water quality management United States....”
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16Published 2000Subjects: “...Nutrient pollution of water United States....”
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17Published 1998Subjects: “...Drinking water United States....”
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18Published 1992Subjects: “...Fish as food United States....”
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19Published 1991Subjects: “...Estuarine pollution United States....”
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20Published 1993Subjects: “...Water Pollution United States....”
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