MLA
Meridians Chocolate Drops : Four African American Boys Standing Outside in Front of Houses, in Meridian, Miss. 1906. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 73. https://digital.library.emory.edu/purl/651vdncjwd-cor.
APA, 6th edition
Meridians chocolate drops : four African American boys standing outside in front of houses, in Meridian, Miss. (Box 73). (1906). [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/651vdncjwd-cor.
Chicago
“Meridians Chocolate Drops : Four African American Boys Standing Outside in Front of Houses, in Meridian, Miss.” Postcards. Robert Langmuir African American Photograph Collection, 1906. Box 73. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/651vdncjwd-cor.