MLA
Wel., and Rec. Ass'n. Slave Quarters, Lee Mansion. 1940. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 74. https://digital.library.emory.edu/purl/945cc2fr21-cor.
APA, 6th edition
W., & Ass'n., R. (1940). Slave quarters, Lee Mansion (Box 74) [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/945cc2fr21-cor.
Chicago
Wel., and Rec. Ass'n. “Slave Quarters, Lee Mansion.” Postcards. Robert Langmuir African American Photograph Collection, 1940. Box 74. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/945cc2fr21-cor.