Stuart J. Murphy. (1997). Lemonade for Sale (MathStart 3) (MathStart 3.). HarperCollins.
Cita Chicago (17th ed.)Stuart J. Murphy. Lemonade for Sale (MathStart 3). MathStart 3. HarperCollins, 1997.
Cita MLA (9th ed.)Stuart J. Murphy. Lemonade for Sale (MathStart 3). MathStart 3. HarperCollins, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.