000 00286nam a2200109Ia 4500
008 231011s9999 xx 000 0 und d
041 _aeng
100 _aGupta C.B.
245 _aAn Introduction to Statistical Methods.
260 _bVikas Pub. House Pvt. Ltd. N.Delhi. -
365 _b40
999 _c883133
_d883133