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No digital objectLibrary / National Library CollectionsNickle, Sam C, author.[1981]
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No digital objectLibrary / National Library CollectionsOttawa :Environment Canada,1987. [1987]
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No digital objectLibrary / National Library CollectionsKrawetz, Natalia Michaelene, 1949-[Ottawa] :The Council,©1987. [1987]
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No digital objectLibrary / National Library Collections[Ottawa] :Industrie, sciences et technologie Canada,[1988-199-] [1988]
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No digital objectLibrary / National Library CollectionsConseil national de recherches Canada. Sous-comité des métaux lourds et de certains autres éléments.Ottawa :Conseil national de recherches du Canada, Comité associé du CNRC sur les critères scientifiques concernant l'état de l'environnement,©1982. [1982]
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No digital objectLibrary / National Library Collections[Ottawa] :Industry, Science and Technology Canada,[1988-199-] [1988]
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No digital objectLibrary / National Library CollectionsOttawa :Environment Canada, Environmental Protection Service,1982. [1982]
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No digital objectLibrary / National Library CollectionsClark, Henry Nichols Blake.Washington, D.C. :Published for Amon Carter Museum by Smithsonian Institution Press,©1988. [1988]
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No digital objectLibrary / National Library CollectionsKrawetz, Natalia Michaelene, 1949-[Ottawa] :Le Conseil,©1988. [1988]
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No digital objectLibrary / National Library CollectionsKrawetz, Natalia M.[Ottawa] :Canadian Environmental Assessment Research Council,1987. [1987]
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No digital objectLibrary / National Library CollectionsKrawetz, Natalia Michaelene, 1949- author.[1987]
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No digital objectLibrary / National Library Collections[Ottawa] :Energy, Mines and Resources Canada, Minerals = Énergie, mines et ressources Canada, Minéraux,c1981-[1983?] [1980]
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No digital objectLibrary / National Library Collections[Ottawa, Ont.] :Energy, Mines and Resources Canada, CANMET, Canada Centre for Mineral and Energy Technology,[1982] [1982]
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No digital objectLibrary / National Library Collections[Ottawa] :Énergie, mines et ressources Canada, Minéraux = Energy, Mines and Resources Canada, Minerals,c1981-[1983?] [1980]
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No digital objectLibrary / National Library CollectionsOttawa :the Tribunal,1984. [1984]
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No digital objectLibrary / National Library CollectionsKrawetz, Natalia Michaelene, 1949-[Ottawa] :Le Conseil,1988. [1988]
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No digital objectLibrary / National Library CollectionsKramer, G. H.Chalk River, Ontario :Chalk River Nuclear Laboratories,May 1981. [1981]
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No digital objectLibrary / National Library Collections[Ottawa] :Energy, Mines, and Resources Canada,©1984. [1984]
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No digital objectLibrary / National Library CollectionsKrawetz, Natalia Michaelene, 1949-[Hull, Québec] :Conseil canadien de la recherche sur les évaluation environnementales,1988. [1988]
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No digital objectLibrary / National Library CollectionsLui, A. W.[Ottawa] :Metals Technology Laboratories,[1989] [1989]
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No digital objectLibrary / National Library CollectionsOttawa :Energie, mines et ressources Canada,c1984. [1984]
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No digital objectLibrary / National Library CollectionsMaurice, S. Charles.[Toronto] :Ontario Ministry of Natural Resources,1984. [1984]
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No digital objectLibrary / National Library CollectionsPasho, D. W.[Ottawa] :Canada Oil and Gas Lands Administration,[1982?] [1982]
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No digital objectLibrary / National Library Collections[Ottawa] :Air Pollution Control Directorate, Environment Canada,1980. [1980]
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No digital objectLibrary / National Library CollectionsSteger, H. F.Ottawa :Canada Centre for Mineral and Energy Technology,1980. [1980]
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