APA (7th ed.) Citation

Silverberg, R., & Gould, R. (1990). Letters from Atlantis. Atheneum ; Collier Macmillan.

Chicago Style (17th ed.) Citation

Silverberg, Robert, and Robert Gould. Letters from Atlantis. New York : Toronto: Atheneum ; Collier Macmillan, 1990.

MLA (9th ed.) Citation

Silverberg, Robert, and Robert Gould. Letters from Atlantis. Atheneum ; Collier Macmillan, 1990.