MLA
Co., E. C. Kropp. Watermelon Jake. 1955. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 69. https://digital.library.emory.edu/purl/409j3tx998-cor.
APA, 6th edition
Co., E. C. K. (1955). Watermelon Jake (Box 69) [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/409j3tx998-cor.
Chicago
Co., E. C. Kropp. “Watermelon Jake.” Postcards. Robert Langmuir African American Photograph Collection, 1955. Box 69. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/409j3tx998-cor.