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    <marc:controlfield tag="007">cr |||||||||||</marc:controlfield>
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      <marc:subfield code="a">A chemical survey of the Detroit River, 1983 </marc:subfield>
      <marc:subfield code="h">[electronic resource] /  </marc:subfield>
      <marc:subfield code="c">M. E. Comba ... [et al.]. </marc:subfield>
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      <marc:subfield code="a">Burlington, Ont. : </marc:subfield>
      <marc:subfield code="b">Environmental Contaminants Division, National Water Research Institute, Canada Centre for Inland Waters, </marc:subfield>
      <marc:subfield code="c">1985.</marc:subfield>
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      <marc:subfield code="a">iii, 68, [18] p. : </marc:subfield>
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      <marc:subfield code="a">Contribution ; </marc:subfield>
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      <marc:subfield code="a">"March 1985".</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: p. 30-32.</marc:subfield>
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      <marc:subfield code="a">"This report is the backup document to  several of the papers published in the J. Great Lakes Research, Volume 11, Issue 3, on the St. Clair and Detroit River pollution problem. The report provides sampling and experimental details, 9 Tables of descriptive and analytical data on the samples examined, plus an Appendix with cross-references to previous years’ samplings"-- Exec. summary.</marc:subfield>
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      <marc:subfield code="a">Canada. </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">NWRI contribution ;</marc:subfield>
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      <marc:subfield code="q">PDF</marc:subfield>
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      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2017/eccc/En13-5-85-85-eng.pdf</marc:subfield>
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