MLA
Little Sister : an African American Boy and a Toddler Girl. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 72. https://digital.library.emory.edu/purl/156zw3r23q-cor.
APA, 6th edition
Little sister : an African American boy and a toddler girl (Box 72). [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/156zw3r23q-cor.
Chicago
“Little Sister : an African American Boy and a Toddler Girl.” Postcards. Robert Langmuir African American Photograph Collection, n.d. Box 72. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/156zw3r23q-cor.