Cita APA (7th ed.)
Joy, D. M. (1989). Unfinished business. Victor Books.
Cita Chicago (17th ed.)
Joy, Donald M. Unfinished Business. Wheaton, IL: Victor Books, 1989.
Cita MLA (9th ed.)
Joy, Donald M. Unfinished Business. Victor Books, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.