MLA
Carter & Gut (N.Y.). Waiting their turn at the cotton gin, Memphis, Tenn. [hand colored]. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/730bvq83fk-cor.
APA, 6th edition
Carter & Gut (N.Y.). (unknown)[Waiting their turn at the cotton gin, Memphis, Tenn. [hand colored]]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/730bvq83fk-cor.
Chicago
Carter & Gut (N.Y.), Waiting their turn at the cotton gin, Memphis, Tenn. [hand colored], unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/730bvq83fk-cor.