MLA
Colourpicture Publishers (Firm). Cotton picking in the South : five African American men picking cotton in a field with houses and trees in the far distance [hand colored]. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/2150gb5mpk-cor.
APA, 6th edition
Colourpicture Publishers (Firm). (unknown)[Cotton picking in the South : five African American men picking cotton in a field with houses and trees in the far distance [hand colored]]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/2150gb5mpk-cor.
Chicago
Colourpicture Publishers (Firm), Cotton picking in the South : five African American men picking cotton in a field with houses and trees in the far distance [hand colored], unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/2150gb5mpk-cor.