Cite

Two missionary fathers working a whipsaw outdoors, Canada, ca. 1920-1940

MLA

Two Missionary Fathers Working a Whipsaw Outdoors, Canada, Ca. 1920-1940. 1920. https://collections.library.yale.edu/catalog/11477991.

APA, 6th edition

Two missionary fathers working a whipsaw outdoors, Canada, ca. 1920-1940. (1920). [General views (AAT), photographic postcards (AAT), photographs (AAT)]. https://collections.library.yale.edu/catalog/11477991.