MLA
Ella G. Berry, Grand Daughter Ruler, Chicago, Illinois. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 70. https://digital.library.emory.edu/purl/750tqjq2gb-cor.
APA, 6th edition
Ella G. Berry, grand daughter ruler, Chicago, Illinois (Box 70). [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/750tqjq2gb-cor.
Chicago
“Ella G. Berry, Grand Daughter Ruler, Chicago, Illinois.” Photographic postcards. Robert Langmuir African American Photograph Collection, n.d. Box 70. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/750tqjq2gb-cor.