APA (7th ed.) Citation

André, R., & Braddon, M. E. (1870). Unmasked. s.n..

Chicago Style (17th ed.) Citation

André, R., and M. E. Braddon. Unmasked. [London?: s.n., 1870.

MLA (8th ed.) Citation

André, R., and M. E. Braddon. Unmasked. s.n., 1870.