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No digital objectLibrary / National Library CollectionsCanada Centre for Mapping.Ottawa :Army Survey Establishment :Surveys and Mapping Branch,1979. [1979]
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No digital objectLibrary / National Library CollectionsBootsma, A.Ottawa :Printed by Energy, Mines and Resources in co-operation with Land Resource Institute,1980. [1980]
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No digital objectLibrary / National Library CollectionsCanada. Geographical Services Directorate.Ottawa :The Branch,1981. [1981]
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No digital objectLibrary / National Library CollectionsCanada. Geographical Services Directorate.[Ottawa] :[The Branch],1981. [1981]
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No digital objectLibrary / National Library CollectionsCanada. Geographical Services Directorate.[Ottawa] :[The Branch],1981. [1981]
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No digital objectLibrary / National Library CollectionsCanada. Energy, Mines and Resources Canada.Ottawa :Energy, Mines and Resources Canada,1985- [1985]
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No digital objectLibrary / National Library CollectionsCanada. Energy, Mines and Resources Canada.Ottawa :Energy Mines and Resources Canada,1985- [1985]
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No digital objectLibrary / National Library CollectionsHughes, Alun, 1942-[Toronto] :[Chicago?] :Environment Canada ;U.S. Environmental Protection Agency,1987. [1987]
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No digital objectLibrary / National Library CollectionsCanadian Cartographics Ltd.Coquitlam, B.C. :Canadian Cartographics Ltd.,1999. [1999]
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No digital objectLibrary / National Library CollectionsCanada. Atmospheric Environment Service.[Downsview, Ont.?] :Atmospheric Environment Service,©1984- [1984]
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