Sloane Paul, MacHale Des, & Miller, M. (1997). Perplexing lateral thinking puzzles. Ms Victoria Reio.
Cita Chicago (17th ed.)Sloane Paul, MacHale Des, i Myron Miller. Perplexing Lateral Thinking Puzzles. New York: Ms Victoria Reio, 1997.
Cita MLA (9th ed.)Sloane Paul, et al. Perplexing Lateral Thinking Puzzles. Ms Victoria Reio, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.