School Mathematics Study Group & Bell, M. S. (1963). A brief course in mathematics for elementary school teachers (Rev. ed.). s.n.
Citace podle Chicago (17th ed.)School Mathematics Study Group a Max S. Bell. A Brief Course in Mathematics for Elementary School Teachers. Rev. ed. [s.l: s.n, 1963.
Citace podle MLA (9th ed.)School Mathematics Study Group a Max S. Bell. A Brief Course in Mathematics for Elementary School Teachers. Rev. ed. s.n, 1963.
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