Cite

Topographical map of the Rocky and Selkirk Mountains : between Lat. 50⁰37ʹ and 51⁰44ʹ North, Long. 115⁰55ʹ and 118⁰21ʹ West / Department of the Interior ; J.E. Chalifour, chief geographer.

MLA

of the Interior, Canada. Dept. Topographical Map of the Rocky and Selkirk Mountains : between Lat. 50⁰37ʹ and 51⁰44ʹ North, Long. 115⁰55ʹ and 118⁰21ʹ West / Department of the Interior ; J.E. Chalifour, Chief Geographer. Dept. of the Interior, 1914. https://collections.library.yale.edu/catalog/15536318.

APA, 6th edition

of the Interior, C. D. (1914). Topographical map of the Rocky and Selkirk Mountains : between Lat. 50⁰37ʹ and 51⁰44ʹ North, Long. 115⁰55ʹ and 118⁰21ʹ West / Department of the Interior ; J.E. Chalifour, chief geographer. [Maps]. Dept. of the Interior, https://collections.library.yale.edu/catalog/15536318.