MLA
Hemyng, Bracebridge, 1841-1901. Telegraph secrets. 1870. Chester W. Topp collection of Victorian yellowbacks and paperbacks. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/129p2ngg0c-cor.
APA, 6th edition
Hemyng, Bracebridge, 1841-1901. (1870)[Telegraph secrets, 6th edition.]. Chester W. Topp collection of Victorian yellowbacks and paperbacks, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/129p2ngg0c-cor.
Chicago
Hemyng, Bracebridge, 1841-1901, Telegraph secrets, 1870, Chester W. Topp collection of Victorian yellowbacks and paperbacks, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/129p2ngg0c-cor.