MLA
Du Boisgobey, Fortune?, 1821-1891. The steel necklace [Copy 1]. 1886. Chester W. Topp collection of Victorian yellowbacks and paperbacks. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/211kh18cw1-cor.
APA, 6th edition
Du Boisgobey, Fortune?, 1821-1891. (1886)[The steel necklace [Copy 1]]. Chester W. Topp collection of Victorian yellowbacks and paperbacks, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/211kh18cw1-cor.
Chicago
Du Boisgobey, Fortune?, 1821-1891, The steel necklace [Copy 1], 1886, Chester W. Topp collection of Victorian yellowbacks and paperbacks, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/211kh18cw1-cor.