MLA
Blessington, Marguerite, Countess of, 1789-1849. The confessions of an elderly lady and of an elderly gentleman. 1848. Chester W. Topp collection of Victorian yellowbacks and paperbacks. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/156zw3r4w9-cor.
APA, 6th edition
Blessington, Marguerite, Countess of, 1789-1849. (1848)[The confessions of an elderly lady and of an elderly gentleman]. Chester W. Topp collection of Victorian yellowbacks and paperbacks, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/156zw3r4w9-cor.
Chicago
Blessington, Marguerite, Countess of, 1789-1849, The confessions of an elderly lady and of an elderly gentleman, 1848, Chester W. Topp collection of Victorian yellowbacks and paperbacks, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/156zw3r4w9-cor.