Stuart J. Murphy. (1997). Lemonade for Sale (MathStart 3) (MathStart 3.). HarperCollins.
Lua i Stíl Chicago (17ú heag.)Stuart J. Murphy. Lemonade for Sale (MathStart 3). MathStart 3. HarperCollins, 1997.
Lua MLA (9ú heag.)Stuart J. Murphy. Lemonade for Sale (MathStart 3). MathStart 3. HarperCollins, 1997.
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