(2003). Mathemathics methods for elementary and middle school teachers. New York: John Wiley & Sons.
Παραπομπή Chicago StyleMathemathics Methods for Elementary and Middle School Teachers. New York: John Wiley & Sons, 2003.
Παραπομπή MLAMathemathics Methods for Elementary and Middle School Teachers. New York: John Wiley & Sons, 2003.
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