Cita APA (7th ed.)

Francis, D. (1990). The edge (1st Ballantine ed.). Ballantine Books.

Cita Chicago (17th ed.)

Francis, Dick. The Edge. 1st Ballantine ed. New York: Ballantine Books, 1990.

Cita MLA (9th ed.)

Francis, Dick. The Edge. 1st Ballantine ed. Ballantine Books, 1990.