Cite

Portrait of a boy, Congo, ca. 1920-1940

MLA

Portrait of a Boy, Congo, Ca. 1920-1940. 1920. https://collections.library.yale.edu/catalog/11478475.

APA, 6th edition

Portrait of a boy, Congo, ca. 1920-1940. (1920). [Photographic postcards (AAT), photographs (AAT), portraits (AAT)]. https://collections.library.yale.edu/catalog/11478475.