MLA
Carter & Gut (N.Y.). The Dixie Troubadours : John Rucker and the Dixie chorus, African American men and women in costume, posing on a stage [hand colored]. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/672b8gthz3-cor.
APA, 6th edition
Carter & Gut (N.Y.). (unknown)[The Dixie Troubadours : John Rucker and the Dixie chorus, African American men and women in costume, posing on a stage [hand colored]]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/672b8gthz3-cor.
Chicago
Carter & Gut (N.Y.), The Dixie Troubadours : John Rucker and the Dixie chorus, African American men and women in costume, posing on a stage [hand colored], unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/672b8gthz3-cor.