000 00239nam a2200097Ia 4500
008 170912s9999 xx 000 0 und d
100 _aWILLIAM G COCHRAN
245 0 _aSAMPLING TECHNIQUES
260 _bMACMILLAN EDUCATION
_c1984
942 _cTB
999 _c24031
_d24031