000 00297nam a2200121 4500
020 _a968-24-0472-X
082 _a519.5 j836e
100 _aJohnson Robert
245 _aEstadiostica elemental/Johnson Robert
260 _aMexico : trillas
300 _a514p/25cm.
650 _a1.ESTADISTICA ELEMNTAL
999 _c25731
_d25731