000 00278nam a2200121Ia 4500
100 _aWilliam G. Cochran
020 _a9971-51-271-8
942 _cBK
245 _aSampling techniques
260 _aJohn Wiley & sons., New York
_c2006
082 _a311.21 Coc
300 _axvi,431p
999 _c45550
_d45550