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      <marc:subfield code="a">Gray, A. H., </marc:subfield>
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      <marc:subfield code="a">A study of the stability of mustard stored since World War II (c) / </marc:subfield>
      <marc:subfield code="c">by A.H. Gray and R.V. Jardine.</marc:subfield>
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      <marc:subfield code="a">Ralston, Alberta : </marc:subfield>
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      <marc:subfield code="c">July 1972</marc:subfield>
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      <marc:subfield code="a">Suffield memorandum ; </marc:subfield>
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      <marc:subfield code="a">"Project no. 20-20-32, Confidential, Group II, No Automatic Downgrading"--title page.</marc:subfield>
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      <marc:subfield code="a">Digitized edition from print [produced by Defence Research and Development Canada].</marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references (page 7).</marc:subfield>
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      <marc:subfield code="a">"Samples of mustard from Vat No. 10 at DRES were distilled and the fractions analyzed by various means. On a water and carbon tetrachloride-free basis it was found that the material from the vat was about 70% pure."--abstract.</marc:subfield>
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      <marc:subfield code="a">Mustard gas</marc:subfield>
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      <marc:subfield code="a">Chemical weapons disposal.</marc:subfield>
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      <marc:subfield code="a">Gaz moutarde</marc:subfield>
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      <marc:subfield code="a">Armes chimiques</marc:subfield>
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      <marc:subfield code="a">Defence Research Establishment Suffield, </marc:subfield>
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      <marc:subfield code="a">Suffield memorandum ;</marc:subfield>
      <marc:subfield code="v">no. 59/70.</marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.926310</marc:subfield>
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      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2024/rddc-drdc/DR52-6-26-1972-eng.pdf</marc:subfield>
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