MLA
Mark, M. It's a Shame to Take the Money : African American Boys Playing Cards. 1909. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 70. https://digital.library.emory.edu/purl/805fbg79hs-cor.
APA, 6th edition
Mark, M. (1909). It's a shame to take the money : African American boys playing cards (Box 70) [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/805fbg79hs-cor.
Chicago
Mark, M. “It's a Shame to Take the Money : African American Boys Playing Cards.” Postcards. Robert Langmuir African American Photograph Collection, 1909. Box 70. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/805fbg79hs-cor.