Arithmetical abstractions : : the movement toward conceptual maturity under differing systems of instruction
Guardado en:
| Autor principal: | |
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| Formato: | Libro |
| Publicado: |
Berkeley : Los Angeles :
University of California,
1967.
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| Colección: | Publications in education ;
17 |
| Materias: |
| Descripción Física: | 221 p. |
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