National Council of Teachers of Mathematics. (1973). Geometry in the mathematics curriculum. NCTM,].
Citace podle Chicago (17th ed.)National Council of Teachers of Mathematics. Geometry in the Mathematics Curriculum. [Reston, VA: NCTM,], 1973.
Citace podle MLA (9th ed.)National Council of Teachers of Mathematics. Geometry in the Mathematics Curriculum. NCTM,], 1973.
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