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      <marc:subfield code="a">Ford, J. S., </marc:subfield>
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      <marc:subfield code="a">Environmental measuring systems recently prototyped by staff of the Engineering Services Section Canada Centre for Inland Waters, for limnological and other water research studies : </marc:subfield>
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      <marc:subfield code="a">[Burlington, Ont.] : </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">"The Canada Centre for Inland Waters is a major multi-disciplinary national water resources research establishment of the Department of Fisheries and the Environment. The survey and study programs of the C.C.I.W. are concerned with water management problems of national interest"--Introduction, page ii.</marc:subfield>
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      <marc:subfield code="a">Limnologie</marc:subfield>
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      <marc:subfield code="a">Canada Centre for Inland Waters, </marc:subfield>
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