000 00269nam a2200109Ia 4500
008 190719s9999 xx 000 0 und d
100 _aB D Gupta & O P Gupta
245 0 _aMathematical statistics
260 _aMeerut
_bKedar Math & Co.
_c1971
650 _aMath
942 _cBK
999 _c471
_d471