MLA
Havens, O. P. Coon Hunting in the South : Three African American Girls Sitting on a Hollow Log and Three Boys inside It. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 73. https://digital.library.emory.edu/purl/4407wm37s4-cor.
APA, 6th edition
Havens, O. P. Coon hunting in the south : three African American girls sitting on a hollow log and three boys inside it (Box 73) [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/4407wm37s4-cor.
Chicago
Havens, O. P. “Coon Hunting in the South : Three African American Girls Sitting on a Hollow Log and Three Boys inside It.” 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/4407wm37s4-cor.