Surveys, C. D. o. M. a. T. (1960). Isachsen decca chain, southern sheet / the geographical grid and topographical features were drawn by the Canadian Hydrographic Service from the latest information supplied by the Surveys and Mapping Branch to December 1960. Ottawa : Dept. of Mines and Technical Surveys.
Chicago Style (17th ed.) CitationSurveys, Canada. Department of Mines and Technical. Isachsen Decca Chain, Southern Sheet / the Geographical Grid and Topographical Features Were Drawn by the Canadian Hydrographic Service from the Latest Information Supplied by the Surveys and Mapping Branch to December 1960. Ottawa : Dept. of Mines and Technical Surveys, 1960.
MLA (9th ed.) CitationSurveys, Canada. Department of Mines and Technical. Isachsen Decca Chain, Southern Sheet / the Geographical Grid and Topographical Features Were Drawn by the Canadian Hydrographic Service from the Latest Information Supplied by the Surveys and Mapping Branch to December 1960. Ottawa : Dept. of Mines and Technical Surveys, 1960.