MLA
Eddy, E. C. Greetings from Southern Pines, N.C. [Hand Colored]. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 71. https://digital.library.emory.edu/purl/5053ffbg96-cor.
APA, 6th edition
Eddy, E. C. Greetings from Southern Pines, N.C. [hand colored] (Box 71) [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/5053ffbg96-cor.
Chicago
Eddy, E. C. “Greetings from Southern Pines, N.C. [Hand Colored].” Photographic postcards. Robert Langmuir African American Photograph Collection, n.d. Box 71. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/5053ffbg96-cor.