MLA
Williams Studio (Kansas City, Mo.). African American man sitting on a chair while wearing a suit, with his legs crossed. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/805fbg79gc-cor.
APA, 6th edition
Williams Studio (Kansas City, Mo.). (unknown)[African American man sitting on a chair while wearing a suit, with his legs crossed]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/805fbg79gc-cor.
Chicago
Williams Studio (Kansas City, Mo.), African American man sitting on a chair while wearing a suit, with his legs crossed, unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/805fbg79gc-cor.