Cite

Two young sisters, Kivu, Congo, ca. 1920-1940

MLA

Two Young Sisters, Kivu, Congo, Ca. 1920-1940. 1920. https://collections.library.yale.edu/catalog/11455122.

APA, 6th edition

Two young sisters, Kivu, Congo, ca. 1920-1940. (1920). [Interior scenes (AAT), photographic postcards (AAT), photographs (AAT)]. https://collections.library.yale.edu/catalog/11455122.