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pro vyhledávání: '"Austin, Virginia Allen"'
Autor:
Rappaport, David, Stibal, Willard, Franson, Joseph P., Austin, Virginia Allen, Brekke, Gail, Young, Jerry L., Stettner, Christine, Porter, Fay A., Tunis, Harry B.
Publikováno v:
The Arithmetic Teacher, 1981 Sep 01. 29(1), 2-54.
Externí odkaz:
https://www.jstor.org/stable/41191967
