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"Acid mine drainage." » "Acid mines drainage." (Expand Search), "Acid min drainage." (Expand Search), "Acid line drainage." (Expand Search)
acid » aid (Expand Search)
"Acid mine drainage." » "Acid mines drainage." (Expand Search), "Acid min drainage." (Expand Search), "Acid line drainage." (Expand Search)
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1by Williams, Donald R.Subjects: “...Acid mine drainage Environmental aspects Pennsylvania Somerset County....”
Published 1996
Government Document Book -
2by Williams, Donald R. (Hydrologist), Sams, James I., Clark, Mary E. (Mary Eileen), 1970-Subjects: “...Acid mine drainage Environmental aspects Pennsylvania Somerset County....”
Published 1996
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Government Document eBook -
3by Sams, James I.Subjects: “...Acid mine drainage Youghiogheny River Watershed....”
Published 2001
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Government Document eBook -
4by Sams, James I.Subjects: “...Acid mine drainage Environmental aspects Allegheny River Watershed (Pa. and N.Y.)...”
Published 2000
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Government Document Book