MLA
Rensler's. African American Woman Wearing a Dress, Fur Scarf and Hat While Sitting on a Chair, with an African American Girl Standing next to Her, and an African American Man in a Suit and Hat Standing behind Her. 1919. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 72. https://digital.library.emory.edu/purl/962f7m0cjc-cor.
APA, 6th edition
R. (1919). African American woman wearing a dress, fur scarf and hat while sitting on a chair, with an African American girl standing next to her, and an African American man in a suit and hat standing behind her (Box 72) [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/962f7m0cjc-cor.
Chicago
Rensler's. “African American Woman Wearing a Dress, Fur Scarf and Hat While Sitting on a Chair, with an African American Girl Standing next to Her, and an African American Man in a Suit and Hat Standing behind Her.” Photographic postcards. Robert Langmuir African American Photograph Collection, 1919. Box 72. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/962f7m0cjc-cor.