Patterson, W. (1982). The morality maze (ed.). New Life Books.
Cita Chicago (17th ed.)Patterson, Ward. The Morality Maze. ed. Cincinnati, Ohio: New Life Books, 1982.
Cita MLA (9th ed.)Patterson, Ward. The Morality Maze. ed. New Life Books, 1982.
Atenció: Aquestes cites poden no estar 100% correctes.