MLA
Selling Out Cheap. Charles Sumner Makes a Deal with the Devil. "Letter to Colorado Citizens" and "Sumner's Speech Against Grant" Hang from the Desk. Currier & Ives, 1870. Stuart A. Rose Manuscript, Archives, and Rare Book Library, OP9, Folder 5. https://digital.library.emory.edu/purl/030prr4zr7-cor.
APA, 6th edition
Selling Out Cheap. Charles Sumner makes a deal with the Devil. "Letter to Colorado Citizens" and "Sumner's Speech Against Grant" hang from the desk (OP9, Folder 5). (1870). [Political cartoons]. Currier & Ives; Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/030prr4zr7-cor.
Chicago
“Selling Out Cheap. Charles Sumner Makes a Deal with the Devil. ‘Letter to Colorado Citizens’ and ‘Sumner's Speech Against Grant’ Hang from the Desk.” Political cartoons. Civil War Collection. New York City, NY: Currier & Ives, 1870. OP9, Folder 5. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/030prr4zr7-cor.