MLA
Co., Detroit Publishing. A Typical Cotton Cart : an African American Man Sitting on a Flat Two Wheeled Wagon Loaded with Cotton Pulled by a Mule with a Brick Building behind Them. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 68. https://digital.library.emory.edu/purl/0924b8gtmw-cor.
APA, 6th edition
Co., D. P. A typical cotton cart : an African American man sitting on a flat two wheeled wagon loaded with cotton pulled by a mule with a brick building behind them (Box 68) [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0924b8gtmw-cor.
Chicago
Co., Detroit Publishing. “A Typical Cotton Cart : an African American Man Sitting on a Flat Two Wheeled Wagon Loaded with Cotton Pulled by a Mule with a Brick Building behind Them.” Postcards. Robert Langmuir African American Photograph Collection, n.d. Box 68. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0924b8gtmw-cor.