000 00266nam a2200109Ia 4500
008 190719s9999 xx 000 0 und d
100 _aVijay Gupta
245 0 _aMathemetical statistics
260 _aNew Delhi
_bNational Pub House
_c1971
650 _aMath
942 _cBK
999 _c3944
_d3944