MLA
Mitchell, Edward H. Hop Picking [Hand Colored]. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 70. https://digital.library.emory.edu/purl/969866t1mc-cor.
APA, 6th edition
Mitchell, E. H. Hop picking [hand colored] (Box 70) [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/969866t1mc-cor.
Chicago
Mitchell, Edward H. “Hop Picking [Hand Colored].” Postcards. Robert Langmuir African American Photograph Collection, n.d. Box 70. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/969866t1mc-cor.