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      <marc:subfield code="a">Knox, John Lewis,‏ </marc:subfield>
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      <marc:subfield code="e">author.</marc:subfield>
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      <marc:subfield code="a">Atmospheric blocking in the northern hemisphere / </marc:subfield>
      <marc:subfield code="c">by John L. Knox.</marc:subfield>
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      <marc:subfield code="a">Downsview, Ontario : </marc:subfield>
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      <marc:subfield code="a">Canadian Climate Centre report ; </marc:subfield>
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      <marc:subfield code="a">"This report has received only limited circulation because of the special nature of the project. However, reference is permitted if the words "Unpublished manuscript" are made part of the bibliographic entry, in accordance with accepted practice."</marc:subfield>
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      <marc:subfield code="a">"The intent of this study is to investigate the statistics and certain diagnostics of blocking in the Northern Hemisphere"--Abstract, page [i].</marc:subfield>
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