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|a Sistema de Bibliotecas UNAH
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| 082 |
0 |
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|a 511.2-N27
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| 110 |
2 |
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|a National council of teachers of mathematicas
|
| 245 |
1 |
3 |
|a El Sistema de los nœmeros racionales
|c National council of teachers of mathematicas
|
| 260 |
|
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|c 1970
|a México
|b Trillas
|
| 300 |
|
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|a 116 p.
|
| 490 |
0 |
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|a (Temas de matemáticas
|v 10)
|
| 650 |
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4 |
|a MATEMÁTICAS
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| 650 |
|
4 |
|a NUMEROS
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| 942 |
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