MLA

People Standing and Sitting Outside of a Fieldstone and Thatch Hut, South Africa, Ca. 1920-1940. 1920. https://collections.library.yale.edu/catalog/11447304.

APA, 6th edition

People standing and sitting outside of a fieldstone and thatch hut, South Africa, ca. 1920-1940. (1920). [General views (AAT), photographic postcards (AAT), photographs (AAT)]. https://collections.library.yale.edu/catalog/11447304.