MLA
Co., Detroit Publishing. Picking Cotton : Several African American Men and an African American Woman Picking Cotton with Bags of Cotton and a Man on Horseback Nearby [Hand Colored]. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 68. https://digital.library.emory.edu/purl/013mw6m92z-cor.
APA, 6th edition
Co., D. P. Picking cotton : several African American men and an African American woman picking cotton with bags of cotton and a man on horseback nearby [hand colored] (Box 68) [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/013mw6m92z-cor.
Chicago
Co., Detroit Publishing. “Picking Cotton : Several African American Men and an African American Woman Picking Cotton with Bags of Cotton and a Man on Horseback Nearby [Hand Colored].” 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/013mw6m92z-cor.