MLA
Boyd, Archibald. The Cardinal. R. Bentley, 1858. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/8708w9gmnq-cor.
APA, 6th edition
Boyd, A. (1858). The cardinal [Yellowbacks.]. R. Bentley; Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/8708w9gmnq-cor.
Chicago
Boyd, Archibald. “The Cardinal.” Yellowbacks. Chester W. Topp Collection of Victorian Yellowbacks and Paperbacks. London: R. Bentley, 1858. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/8708w9gmnq-cor.