000 00532nam a2200145 i 4500
008 140521s mx g spa
080 1 _a51
110 _aNational Council of Teachers of Mathematics (Estados Unidos)
245 3 _aEl sistema de los nĂºmeros reales
_c/ National Council of Teachers of Mathematics
250 _a1{u00AA} ed., 1{u00AA} reimp
260 _aMexico
_b:Trillas
_c,1972
300 _a61 p.
_c;23cm
650 _aNĂºmeros reales
997 _dData non definida (008date1) ; Falta ISBN
_e1