APA (7th ed.) Citation

Crichton, M. (1993). Sphere: A novel (5. print.). Knopf.

Chicago Style (17th ed.) Citation

Crichton, Michael. Sphere: A Novel. 5. print. New York: Knopf, 1993.

MLA (9th ed.) Citation

Crichton, Michael. Sphere: A Novel. 5. print. Knopf, 1993.