Cite

Map of British Columbia : [cartographic material] Rand, McNally & Co.'s indexed atlas of the world map of British Columbia / Rand, McNally, & Co.

MLA

McNally, Rand, and Company. Map of British Columbia : [Cartographic Material] Rand, McNally & Co.'s Indexed Atlas of the World Map of British Columbia / Rand, McNally, & Co. Rand, McNally & Co., 1898. https://collections.library.yale.edu/catalog/15536284.

APA, 6th edition

McNally, R., & C. (1898). Map of British Columbia : [cartographic material] Rand, McNally & Co.'s indexed atlas of the world map of British Columbia / Rand, McNally, & Co. [Maps]. Rand, McNally & Co., https://collections.library.yale.edu/catalog/15536284.