MLA
Havens, O. P. Plantation Life : with Two African American Men, One Playing a Banjo, an African American Woman and Two Children and a Dog [Hand Colored]. 1890. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 71. https://digital.library.emory.edu/purl/651vdncjvq-cor.
APA, 6th edition
Havens, O. P. (1890). Plantation life : with two African American men, one playing a banjo, an African American woman and two children and a dog [hand colored] (Box 71) [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/651vdncjvq-cor.
Chicago
Havens, O. P. “Plantation Life : with Two African American Men, One Playing a Banjo, an African American Woman and Two Children and a Dog [Hand Colored].” Postcards. Robert Langmuir African American Photograph Collection, 1890. Box 71. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/651vdncjvq-cor.