Cita APA (7th ed.)
Perry, S. (1989). The 97th step. Ace Books.
Cita Chicago (17th ed.)
Perry, Steve. The 97th Step. New York: Ace Books, 1989.
Cita MLA (9th ed.)
Perry, Steve. The 97th Step. Ace Books, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.