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_aCO-ViULL _erda _bspa |
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_aVelasco Coba, Federico, _etranslator _989562. _4trl |
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_aNational Council of Teachers of Mathematics _986779. |
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_aGráficas, Relaciones y Funciones / _cFederico Velasco Coba, traductor. |
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_aMéxico : _bTrillas, _c1979. |
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_a109 páginas : _bilustraciones; graf. |
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_aTemas de Matemáticas Nº13 _9105237 |
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| 504 | _aIncluye índice. | ||
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_aRELACIONES (MATEMATICAS) _985378. |
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_aMATEMATICAS - FUNCIONES GRAFICAS _9105238. |
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_aTEORIA DE CONJUNTOS _9105239. |
| 767 | 0 | 8 | _aTopics in Mathematics for Elementary School Teachers Booklet Number 13. Graphs. Relations and Functions |
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