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      <marc:subfield code="a">"The object of this manuscript report is to present in brief diagrammatic form information on the thermal structure of the waters of Babine Lake and Nilkitkwa Lake during the ice free period of the years 1956 through to 1963"--page [4].</marc:subfield>
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      <marc:subfield code="a">Manuscript report series (biological)</marc:subfield>
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