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      <marc:subfield code="a">Thompson, Mary E., </marc:subfield>
      <marc:subfield code="e">author.</marc:subfield>
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      <marc:subfield code="a">Comparison of cation denudation rates, excess sulfate yields, and wet deposition of excess sulfate for the Mersey River below Mill Falls, Kejimkujik National Park, Nova Scotia, 1980-1985 / </marc:subfield>
      <marc:subfield code="c">by Mary E. Thompson.</marc:subfield>
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      <marc:subfield code="a">Burlington, Ontario, Canada : </marc:subfield>
      <marc:subfield code="b">National Water Research Institute, Rivers Research Branch, Canada Centre for Inland Waters, </marc:subfield>
      <marc:subfield code="c">June 1987.</marc:subfield>
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      <marc:subfield code="a">NWRI contribution ; </marc:subfield>
      <marc:subfield code="v">87-144</marc:subfield>
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      <marc:subfield code="a">"RRB-87-21."</marc:subfield>
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      <marc:subfield code="a">Title from cover.</marc:subfield>
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      <marc:subfield code="a">Digitized edition from print [produced by Environment and Climate Change Canada].</marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references.</marc:subfield>
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      <marc:subfield code="a">"Cation denudation rates and excess sulfate yields of the Mersey River below Mill Falls for the years 1980-1985 have been calculated and compared with wet deposition of excess sulfate at Kejimkujik National Park, and show little relation to each other, although the excess sulfate yields and wet deposition of excess sulfate are of the same order of magnitude"--Abstract.</marc:subfield>
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      <marc:subfield code="a">Includes a management perspective and abstract in English and French.</marc:subfield>
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      <marc:subfield code="a">National Water Research Institute (Canada). </marc:subfield>
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      <marc:subfield code="a">Canada Centre for Inland Waters.</marc:subfield>
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      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-87-144-eng.pdf</marc:subfield>
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