MLA
Howe, F. L. Georgia Crap Shooters : a Group of African American Boys Playing. 1905. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 74. https://digital.library.emory.edu/purl/4472v6wws8-cor.
APA, 6th edition
Howe, F. L. (1905). Georgia crap shooters : a group of African American boys playing (Box 74) [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/4472v6wws8-cor.
Chicago
Howe, F. L. “Georgia Crap Shooters : a Group of African American Boys Playing.” Postcards. Robert Langmuir African American Photograph Collection, 1905. Box 74. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/4472v6wws8-cor.