Cite

Men guiding a flat-bottomed boat over rapids, Canada, ca. 1920-1940

MLA

Men Guiding a Flat-Bottomed Boat over Rapids, Canada, Ca. 1920-1940. 1920. https://collections.library.yale.edu/catalog/11477972.

APA, 6th edition

Men guiding a flat-bottomed boat over rapids, Canada, ca. 1920-1940. (1920). [General views (AAT), photographic postcards (AAT), photographs (AAT)]. https://collections.library.yale.edu/catalog/11477972.