MLA
Allgood, Susie W. Luncheon : Four African American Boys Watching Pigs [Hand Colored]. 1909. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 69. https://digital.library.emory.edu/purl/948sbcc2kc-cor.
APA, 6th edition
Allgood, S. W. (1909). Luncheon : four African American boys watching pigs [hand colored] (Box 69) [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/948sbcc2kc-cor.
Chicago
Allgood, Susie W. “Luncheon : Four African American Boys Watching Pigs [Hand Colored].” Photographic postcards. Robert Langmuir African American Photograph Collection, 1909. Box 69. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/948sbcc2kc-cor.