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      <marc:subfield code="a">Medcof, J. C.</marc:subfield>
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      <marc:subfield code="a">Third survey of Eel River Cove, N.B., soft-shell clam (Mya arenaria) population / </marc:subfield>
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      <marc:subfield code="c">November 1967.</marc:subfield>
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      <marc:subfield code="a">"This series includes unpublished preliminary reports and data records not intended for general distribution. They should not be referred to in publications without clearance from the issuing Board establishment and without clear indication of their manuscript status."</marc:subfield>
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      <marc:subfield code="a">Manuscript report series (Fisheries Research Board of Canada)</marc:subfield>
      <marc:subfield code="v">no. 941.</marc:subfield>
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