MLA
Thomas, Robert. Cotton Pickin' Time in Southern Georgia [Hand Colored]. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 68. https://digital.library.emory.edu/purl/351hhmgqrh-cor.
APA, 6th edition
Thomas, R. Cotton pickin' time in Southern Georgia [hand colored] (Box 68) [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/351hhmgqrh-cor.
Chicago
Thomas, Robert. “Cotton Pickin' Time in Southern Georgia [Hand Colored].” Postcards. Robert Langmuir African American Photograph Collection, n.d. Box 68. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/351hhmgqrh-cor.