MLA
Doty, H. M. The Chatham Kind : Fast Black, Warranted Not to Fade : Five African American Children in the Grass. 1906. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 72. https://digital.library.emory.edu/purl/470zpc868r-cor.
APA, 6th edition
Doty, H. M. (1906). The Chatham kind : fast black, warranted not to fade : five African American children in the grass (Box 72) [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/470zpc868r-cor.
Chicago
Doty, H. M. “The Chatham Kind : Fast Black, Warranted Not to Fade : Five African American Children in the Grass.” Postcards. Robert Langmuir African American Photograph Collection, 1906. Box 72. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/470zpc868r-cor.