MLA
Co., Detroit Publishing. Out on Bale : an African American Boy Sitting on a Bale of Cotton [Hand Colored]. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 68. https://digital.library.emory.edu/purl/7203xsj3z0-cor.
APA, 6th edition
Co., D. P. Out on bale : an African American boy sitting on a bale of cotton [hand colored] (Box 68) [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/7203xsj3z0-cor.
Chicago
Co., Detroit Publishing. “Out on Bale : an African American Boy Sitting on a Bale of Cotton [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/7203xsj3z0-cor.