MLA

Two People Looking down on Rice Paddies from a Grassy Hillside, Madagascar, Ca. 1920-1940. 1920. https://collections.library.yale.edu/catalog/11476726.

APA, 6th edition

Two people looking down on rice paddies from a grassy hillside, Madagascar, ca. 1920-1940. (1920). [General views (AAT), photographic postcards (AAT), photographs (AAT)]. https://collections.library.yale.edu/catalog/11476726.