MLA
Remember Bull's Run. [publisher not identified], 1861. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/7203xsj72s-cor.
APA, 6th edition
Remember Bull's Run. (1861). [Southern imprint]. [publisher not identified]; Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/7203xsj72s-cor.
Chicago
“Remember Bull's Run.” Southern imprint. Civil War Imprints. [United States]: [publisher not identified], 1861. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/7203xsj72s-cor.