APA citiranje

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

Chicago Style (17th ed.) Citation

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

MLA citiranje

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

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