MLA
Postcard from Rev. and Mrs. R.H. Dixon to Miss Mable Whitman and E. Buggs. 1937. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 34. https://digital.library.emory.edu/purl/078gf1vhpj-cor.
APA, 6th edition
Postcard from Rev. and Mrs. R.H. Dixon to Miss Mable Whitman and E. Buggs (Box 34). (1937). [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/078gf1vhpj-cor.
Chicago
“Postcard from Rev. and Mrs. R.H. Dixon to Miss Mable Whitman and E. Buggs.” Photographic postcards. Robert Langmuir African American Photograph Collection, 1937. Box 34. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/078gf1vhpj-cor.