MLA

Surveys, Canada., and Mapping Branch. Prince Albert Park, Saskatchewan / Reprinted with Corrections at the Surveys and Mapping Branch. Dept. of Mines and Technical Surveys, Surveys and Mapping Branch, 1951. https://collections.library.yale.edu/catalog/15536086.

APA, 6th edition

Surveys, C., & Branch, M. (1951). Prince Albert Park, Saskatchewan / reprinted with corrections at the Surveys and Mapping Branch. [Maps]. Dept. of Mines and Technical Surveys, Surveys and Mapping Branch, https://collections.library.yale.edu/catalog/15536086.