000 00303nam a2200133Ia 4500
008 240723s9999 xx 000 0 und d
041 _aEnglish
084 _aX
_bL8
245 0 _aPractical statistics
260 _aDelhi
_bSultan Chand
_c1977
300 _ap.20.17
650 _aCommerce
942 _cBK
999 _c304021
_d304021