MLA
T. P. & Co. (N.Y.). Picking cotton : African American men, women and children picking cotton [hand colored]. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/3720cfxps7-cor.
APA, 6th edition
T. P. & Co. (N.Y.). (unknown)[Picking cotton : African American men, women and children picking cotton [hand colored]]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/3720cfxps7-cor.
Chicago
T. P. & Co. (N.Y.), Picking cotton : African American men, women and children picking cotton [hand colored], unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/3720cfxps7-cor.