MLA

Survey, Canada. Topographical. Plan of Lake Louise and Vicinity [Map] / Drawn and Printed by the Topographical Survey of Canada. Canada.Dept of the Interior, 1925. https://collections.library.yale.edu/catalog/15536058.

APA, 6th edition

Survey, C. T. (1925). Plan of Lake Louise and vicinity [map] / drawn and printed by the Topographical Survey of Canada. [Maps]. Canada.Dept of the Interior, https://collections.library.yale.edu/catalog/15536058.