MLA
Rosin, and Co. Grandma's Birthday : with an African American Family Sitting Outside a Log Cabin [Hand Colored]. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 71. https://digital.library.emory.edu/purl/030prr4xjc-cor.
APA, 6th edition
R., & C. Grandma's birthday : with an African American family sitting outside a log cabin [hand colored] (Box 71) [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/030prr4xjc-cor.
Chicago
Rosin, and Co. “Grandma's Birthday : with an African American Family Sitting Outside a Log Cabin [Hand Colored].” 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/030prr4xjc-cor.