Victoria sheet, Vancouver Island, British Columbia, topography / C.O. Senécal, geographer and chief draughtsman ; topography R.H. Chapman (in charge), 1909.
MLA
of Canada, Geological Survey. Victoria Sheet, Vancouver Island, British Columbia, Topography / C.O. Senécal, Geographer and Chief Draughtsman ; Topography R.H. Chapman (in Charge), 1909. Geological Survey, 1915. https://collections.library.yale.edu/catalog/15536295.
APA, 6th edition
of Canada, G. S. (1915). Victoria sheet, Vancouver Island, British Columbia, topography / C.O. Senécal, geographer and chief draughtsman ; topography R.H. Chapman (in charge), 1909. [Maps]. Geological Survey, https://collections.library.yale.edu/catalog/15536295.