MLA
Rotograph Co. (New York, N.Y.). Just a nigger in Charleston, S.C. : portrait of an African American girl. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/423612jm8h-cor.
APA, 6th edition
Rotograph Co. (New York, N.Y.). (unknown)[Just a nigger in Charleston, S.C. : portrait of an African American girl]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/423612jm8h-cor.
Chicago
Rotograph Co. (New York, N.Y.), Just a nigger in Charleston, S.C. : portrait of an African American girl, unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/423612jm8h-cor.