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      <marc:subfield code="a">Bélanger, Caroll, </marc:subfield>
      <marc:subfield code="e">author.</marc:subfield>
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      <marc:subfield code="a">Polychlorinated biphenyls in the Quebec environment / </marc:subfield>
      <marc:subfield code="c">Caroll Bélanger, Jean-Claude Dubé, Michel P. Lamontagne.</marc:subfield>
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      <marc:subfield code="b">Fisheries and Environment Canada, </marc:subfield>
      <marc:subfield code="c">October 1977.</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">"This report was prepared for the Committee by the Environmental Management Service and the Fisheries and Marine Service, as a compilation of the available data on levels of polychlorinated biphenyls in the Quebec environment"--Preface, page [1].</marc:subfield>
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      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2024/eccc/Fs99-23-1977-eng.pdf</marc:subfield>
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