000 00306nam a2200121Ia 4500
008 190216s9999||||xx |||||||||||||| ||und||
100 _aHelen M Walker & Joseph Lev
245 0 _aElementary Stastical Methods
260 _bSulthan Chand&Sons
_c1958
300 _a301p
650 _aCommerce
942 _cBK
999 _c3893
_d3893