MLA
Leland, Thomas, 1722-1785. Longsword, son of fair Rosamond : an historical romance. 1880. Chester W. Topp collection of Victorian yellowbacks and paperbacks. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/177fqz6252-cor.
APA, 6th edition
Leland, Thomas, 1722-1785. (1880)[Longsword, son of fair Rosamond : an historical romance]. Chester W. Topp collection of Victorian yellowbacks and paperbacks, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/177fqz6252-cor.
Chicago
Leland, Thomas, 1722-1785, Longsword, son of fair Rosamond : an historical romance, 1880, Chester W. Topp collection of Victorian yellowbacks and paperbacks, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/177fqz6252-cor.