000 00319nam a2200121Ia 4500
008 100324s9999 xx 000 0 und d
100 _aMason R.D
245 _aStatistical techniques in business and economics
260 _bRichard D Irwin
_aIllinois
650 _aECONOMICS
942 _cBK
999 _c724
_d724