Ohio Council of Teachers of Mathematics. (1977). Ohio journal of school mathematics. Ohio Council of Teachers of Mathematics.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)Ohio Council of Teachers of Mathematics. Ohio Journal of School Mathematics. Oxford, Ohio: Ohio Council of Teachers of Mathematics, 1977.
MLA -ийн эшлэл (9 дэх хэвлэлт)Ohio Council of Teachers of Mathematics. Ohio Journal of School Mathematics. Ohio Council of Teachers of Mathematics, 1977.
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