Martini Steve. (1994). Undue influence. Haedline Feature Books Publisheing.
Cita Chicago (17th ed.)Martini Steve. Undue Influence. London: Haedline Feature Books Publisheing, 1994.
Cita MLA (9th ed.)Martini Steve. Undue Influence. Haedline Feature Books Publisheing, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.