00293nam a2200121 a 4500041000800000082001600008100002000024245003300044260004700077300001000124650001600134650002100150  aeng  a311bH19s71  aHays, William L  aStatistics for psychologists  aNew YorkbHolt, Rinehart and Winstonc1963  a719 p  aESTADISTICA  aPSICOLINGUISTICA