MLA
Cotton Picking : an African American Man with a Basket of Cotton on His Head. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 74. https://digital.library.emory.edu/purl/2322bvq856-cor.
APA, 6th edition
Cotton picking : an African American man with a basket of cotton on his head (Box 74). [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/2322bvq856-cor.
Chicago
“Cotton Picking : an African American Man with a Basket of Cotton on His Head.” Postcards. Robert Langmuir African American Photograph Collection, n.d. Box 74. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/2322bvq856-cor.