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      <marc:subfield code="a">R73-4/73-11E-PDF</marc:subfield>
      <marc:subfield code="z">R72-11073</marc:subfield>
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      <marc:subfield code="a">Progress report of the Physical Metallurgy Division / </marc:subfield>
      <marc:subfield code="c">edited by R.C.A. Thurston, Department of Energy, Mines and Resources for the Environmental-Social Program, Northern Pipelines.</marc:subfield>
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    <marc:datafield tag="264" ind1=" " ind2="1">
      <marc:subfield code="a">[Ottawa] : </marc:subfield>
      <marc:subfield code="b">Information Canada, </marc:subfield>
      <marc:subfield code="c">July 1973.</marc:subfield>
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      <marc:subfield code="a">1 online resource (56 pages) : </marc:subfield>
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      <marc:subfield code="a">computer</marc:subfield>
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      <marc:subfield code="a">online resource</marc:subfield>
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      <marc:subfield code="a">Environmental-Social Committee, Northern Pipelines, Task Force on Northern Oil Development Report ; </marc:subfield>
      <marc:subfield code="v">no. 73-11</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 (page 23).</marc:subfield>
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      <marc:subfield code="a">"The activities of the Physical Metallurgy Division with respect to the Environmental Social Program, Northern Pipelines, are directed towards ensuring the structural integrity of the pipeline, whether it be transmitting oil or gas. The short term approach involves the thorough evaluation of currently-available line pipe, both Canadian and foreign, with particular reference to the problem areas"--Summary, page [1].</marc:subfield>
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      <marc:subfield code="a">Task Force on Northern Oil Development (Canada). </marc:subfield>
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      <marc:subfield code="a">Canada. </marc:subfield>
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      <marc:subfield code="a">Report (Task Force on Northern Oil Development (Canada). Environmental-Social Committee)</marc:subfield>
      <marc:subfield code="v">no. 73-11.</marc:subfield>
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