MLA
Chamberlain, J. N. A Dark Corner in Watermelons. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 69. https://digital.library.emory.edu/purl/689d51c5f4-cor.
APA, 6th edition
Chamberlain, J. N. A dark corner in watermelons (Box 69) [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/689d51c5f4-cor.
Chicago
Chamberlain, J. N. “A Dark Corner in Watermelons.” Postcards. Robert Langmuir African American Photograph Collection, n.d. Box 69. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/689d51c5f4-cor.