| 000 | 00484nam a2200145 i 4500 | ||
|---|---|---|---|
| 008 | 140521s1970 mx g spa | ||
| 080 | 1 | _a51 | |
| 110 | _aNational Council of Teachers of Mathematics | ||
| 245 | 3 |
_aEl sistema de los números racionales _c/ National Council of Teachers of Mathematics |
|
| 260 |
_aMexico _b:Trillas _c,1970 |
||
| 300 | _a115 p. ; 23 cm | ||
| 490 | 0 |
_aTemas de matematicas _v;10 |
|
| 650 | _aAlgebra 1C.3 | ||
| 997 |
_dFalta ISBN _e1 |
||