MLA
Bell Studio (N.Y.). African American man and woman posing together. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/8708w9gj3n-cor.
APA, 6th edition
Bell Studio (N.Y.). (unknown)[African American man and woman posing together]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/8708w9gj3n-cor.
Chicago
Bell Studio (N.Y.), African American man and woman posing together, unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/8708w9gj3n-cor.