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 ; the decca lattice grid was drawn by the Systems Division, Decca Navigator Department of Computing Devices of Canada

Chicago citation style
Canada. Department of Mines and Technical Surveys. 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 ; the decca lattice grid was drawn by the Systems Division, Decca Navigator Department of Computing Devices of Canada. 1960. Retrieved from the Digital Public Library of America, http://collections.lib.uwm.edu/cdm/ref/collection/agdm/id/24802. (Accessed April 18, 2024.)
APA citation style
Canada. Department of Mines and Technical Surveys, (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 ; the decca lattice grid was drawn by the Systems Division, Decca Navigator Department of Computing Devices of Canada. Retrieved from the Digital Public Library of America, http://collections.lib.uwm.edu/cdm/ref/collection/agdm/id/24802
MLA citation style
Canada. Department of Mines and Technical Surveys. Retrieved from the Digital Public Library of America <http://collections.lib.uwm.edu/cdm/ref/collection/agdm/id/24802>.
Note: These citations are programmatically generated and may be incomplete.