MLA
Postcard Calling for Re-Election of Wm. Hirsch for Sheriff of Lucas County. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 71. https://digital.library.emory.edu/purl/508hdr7ss7-cor.
APA, 6th edition
Postcard calling for re-election of Wm. Hirsch for Sheriff of Lucas County (Box 71). [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/508hdr7ss7-cor.
Chicago
“Postcard Calling for Re-Election of Wm. Hirsch for Sheriff of Lucas County.” Postcards. Robert Langmuir African American Photograph Collection, n.d. Box 71. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/508hdr7ss7-cor.