MLA
Engraving of Union General William “Bull” Nelson” Crossing the Tennessee River at Pittsburgh Landing during the Shiloh Campaign in April 1862. Hardson, 1862. Stuart A. Rose Manuscript, Archives, and Rare Book Library, OP9, Folder 27. https://digital.library.emory.edu/purl/0106wwq0n0-cor.
APA, 6th edition
Engraving of Union General William “Bull” Nelson” crossing the Tennessee River at Pittsburgh Landing during the Shiloh Campaign in April 1862 (OP9, Folder 27). (1862). [Engravings (prints)]. Hardson; Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0106wwq0n0-cor.
Chicago
“Engraving of Union General William ‘Bull’ Nelson’ Crossing the Tennessee River at Pittsburgh Landing during the Shiloh Campaign in April 1862.” Engravings (prints). Civil War Collection. Hardson, 1862. OP9, Folder 27. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0106wwq0n0-cor.