APA (7th ed.) Citation

Asimov, I. (1985). The edge of tomorrow. T. Doherty Associates.

Chicago Style (17th ed.) Citation

Asimov, Isaac. The Edge of Tomorrow. New York, N.Y.: T. Doherty Associates, 1985.

MLA (9th ed.) Citation

Asimov, Isaac. The Edge of Tomorrow. T. Doherty Associates, 1985.