MLA
Howe, F. L. Now Seben Come Eleben : African American Boys Playing Craps [Hand Colored]. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 70. https://digital.library.emory.edu/purl/631cjsxkxn-cor.
APA, 6th edition
Howe, F. L. Now seben come eleben : African American boys playing craps [hand colored] (Box 70) [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/631cjsxkxn-cor.
Chicago
Howe, F. L. “Now Seben Come Eleben : African American Boys Playing Craps [Hand Colored].” Photographic postcards. Robert Langmuir African American Photograph Collection, n.d. Box 70. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/631cjsxkxn-cor.