Cite

Chief and his guards, Congo, ca. 1900-1930

MLA

Chief and His Guards, Congo, Ca. 1900-1930. 1900. https://collections.library.yale.edu/catalog/11437396.

APA, 6th edition

Chief and his guards, Congo, ca. 1900-1930. (1900). [Group portraits (AAT), photographic postcards (AAT), photographs (AAT)]. https://collections.library.yale.edu/catalog/11437396.