MLA
Walter, A. B. Engraving of Confederate General Joseph E. Johnston. W. W. Bostwick, 1872. Stuart A. Rose Manuscript, Archives, and Rare Book Library, OP9, Folder 15. https://digital.library.emory.edu/purl/542n5tb404-cor.
APA, 6th edition
Walter, A. B. (1872). Engraving of Confederate General Joseph E. Johnston (OP9, Folder 15) [Engravings (prints)]. W. W. Bostwick; Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/542n5tb404-cor.
Chicago
Walter, A. B. “Engraving of Confederate General Joseph E. Johnston.” Engravings (prints). Civil War Collection. Cincinnati, OH: W. W. Bostwick, 1872. OP9, Folder 15. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/542n5tb404-cor.