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  1. 1

    Teaching contemporary mathematics in the elementary school per Howard, Charles Frederick

    Publicat 1966
    Llibre

    Teaching contemporary mathematics in the elementary school
  2. 2

    Basic procedures in teaching arithmetic per Howard, Charles Frederick

    Publicat 1963
    Llibre

    Basic procedures in teaching arithmetic
  3. 3

    Basic procedures in teaching arithmetic: instructor's manual per Howard, Charles Frederick

    Publicat 1963
    Llibre

    Basic procedures in teaching arithmetic: instructor's manual

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