MLA
G. K. (N.Y.). Men sitting on horse-drawn carts full of bales of cotton in front of a row of retail stores in Huntsville, Alabama [hand colored]. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0924b8gtmr-cor.
APA, 6th edition
G. K. (N.Y.). (unknown)[Men sitting on horse-drawn carts full of bales of cotton in front of a row of retail stores in Huntsville, Alabama [hand colored]]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0924b8gtmr-cor.
Chicago
G. K. (N.Y.), Men sitting on horse-drawn carts full of bales of cotton in front of a row of retail stores in Huntsville, Alabama [hand colored], unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0924b8gtmr-cor.