MLA
Hayward, William Stephens. London by Night. William Oliver, 1865. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/542n5tb304-cor.
APA, 6th edition
Hayward, W. S. (1865). London by night [Yellowbacks.]. William Oliver; Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/542n5tb304-cor.
Chicago
Hayward, William Stephens. “London by Night.” Yellowbacks. Chester W. Topp Collection of Victorian Yellowbacks and Paperbacks. London: William Oliver, 1865. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/542n5tb304-cor.