MLA
Statue of Abraham Lincoln and a Freed Slave with the Word Emancipation Engraved on the Bottom, and a Portrait of Abraham Lincoln. 1966. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 70. https://digital.library.emory.edu/purl/6623bk3jfd-cor.
APA, 6th edition
Statue of Abraham Lincoln and a freed slave with the word Emancipation engraved on the bottom, and a portrait of Abraham Lincoln (Box 70). (1966). [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/6623bk3jfd-cor.
Chicago
“Statue of Abraham Lincoln and a Freed Slave with the Word Emancipation Engraved on the Bottom, and a Portrait of Abraham Lincoln.” Postcards. Robert Langmuir African American Photograph Collection, 1966. Box 70. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/6623bk3jfd-cor.