MLA
An African American Woman Posing under a Horseshoe That Says Good Luck, with a Bouquet of Flowers next to Her. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 73. https://digital.library.emory.edu/purl/7612ngf1z0-cor.
APA, 6th edition
An African American woman posing under a horseshoe that says good luck, with a bouquet of flowers next to her (Box 73). [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/7612ngf1z0-cor.
Chicago
“An African American Woman Posing under a Horseshoe That Says Good Luck, with a Bouquet of Flowers next to Her.” Postcards. Robert Langmuir African American Photograph Collection, n.d. Box 73. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/7612ngf1z0-cor.