000 00272nam a2200121Ia 4500
008 161121s9999 xx 000 0 und d
100 _aCOCHRAN (W G)
245 0 _aSampling Techniques
260 _cAsia Publishing House
365 _b0
650 _aNIL
942 _cBK
_02
999 _c98006
_d98006