APA (7th ed.) Citation

E. M. H. (1880). The Octagon club: A character study. G.P. Putnam's.

Chicago Style (17th ed.) Citation

E. M. H. The Octagon Club: A Character Study. New York: G.P. Putnam's, 1880.

MLA (9th ed.) Citation

E. M. H. The Octagon Club: A Character Study. G.P. Putnam's, 1880.