Cite

Lulua River, Kasai, Congo, ca. 1920-1940

MLA

Lulua River, Kasai, Congo, Ca. 1920-1940. 1920. https://collections.library.yale.edu/catalog/11454983.

APA, 6th edition

Lulua River, Kasai, Congo, ca. 1920-1940. (1920). [Photographic postcards (AAT), photographs (AAT), topographical views (AAT)]. https://collections.library.yale.edu/catalog/11454983.