MLA
Two Staple Products : down in Sunny Dixie. 1940. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 68. https://digital.library.emory.edu/purl/4579s4mw93-cor.
APA, 6th edition
Two staple products : down in sunny Dixie (Box 68). (1940). [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/4579s4mw93-cor.
Chicago
“Two Staple Products : down in Sunny Dixie.” Postcards. Robert Langmuir African American Photograph Collection, 1940. Box 68. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/4579s4mw93-cor.