APA (7th ed.) Citation

Donnelly, I., & Sykes, E. (1949). Atlantis: The antediluvian world (A modern rev. ed.). Harper.

Chicago Style (17th ed.) Citation

Donnelly, Ignatius, and Egerton Sykes. Atlantis: The Antediluvian World. A modern rev. ed. New York: Harper, 1949.

MLA (9th ed.) Citation

Donnelly, Ignatius, and Egerton Sykes. Atlantis: The Antediluvian World. A modern rev. ed. Harper, 1949.