APA aipamena

Stuart J. Murphy. (1997). "Betcha! Estimating (Mathstart, Level 3)". HarperCollins.

Chicago Style aipamena

Stuart J. Murphy. "Betcha! Estimating (Mathstart, Level 3)". HarperCollins, 1997.

MLA aipamena

Stuart J. Murphy. "Betcha! Estimating (Mathstart, Level 3)". HarperCollins, 1997.

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