MLA
T. J. Mattox Cigar & Tobacco Co. (Montgomery, Ala.). Cotton ginning day in Dixie : wagons filled with cotton lining a dirt street with African American men standing on or near the wagons [hand colored]. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/907tmpg4jb-cor.
APA, 6th edition
T. J. Mattox Cigar & Tobacco Co. (Montgomery, Ala.). (unknown)[Cotton ginning day in Dixie : wagons filled with cotton lining a dirt street with African American men standing on or near the wagons [hand colored]]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/907tmpg4jb-cor.
Chicago
T. J. Mattox Cigar & Tobacco Co. (Montgomery, Ala.), Cotton ginning day in Dixie : wagons filled with cotton lining a dirt street with African American men standing on or near the wagons [hand colored], unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/907tmpg4jb-cor.