Sagan, C. (1985). Contact: A novel. Simon and Schuster.
Lua i Stíl Chicago (17ú heag.)Sagan, Carl. Contact: A Novel. New York: Simon and Schuster, 1985.
Lua MLA (9ú heag.)Sagan, Carl. Contact: A Novel. Simon and Schuster, 1985.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.