Cite

Dogs surrounding a polar bear on an icy plain, Canada, ca. 1920-1940

MLA

Dogs Surrounding a Polar Bear on an Icy Plain, Canada, Ca. 1920-1940. 1920. https://collections.library.yale.edu/catalog/11477883.

APA, 6th edition

Dogs surrounding a polar bear on an icy plain, Canada, ca. 1920-1940. (1920). [General views (AAT), photographic postcards (AAT), photographs (AAT)]. https://collections.library.yale.edu/catalog/11477883.