Cite

Rapids of the Lubi river, Kasai, Congo, ca. 1920-1940

MLA

Rapids of the Lubi River, Kasai, Congo, Ca. 1920-1940. 1920. https://collections.library.yale.edu/catalog/11454979.

APA, 6th edition

Rapids of the Lubi river, Kasai, Congo, ca. 1920-1940. (1920). [Photographic postcards (AAT), photographs (AAT), topographical views (AAT)]. https://collections.library.yale.edu/catalog/11454979.