000			00372nam a2200145Ia 4500
008			150201s2008 xx 000 0 und d
082			_a310 _bS2008C
100			_aWILLIAM .G .COCHRAN
245			_aSAMPLING TECHNIQUES
250			_a3RD
260			_bWILEY BLACKWELL PUBLISHING _aOXFORD (LONDON) _c2008
300			_a1-428
650			_aGENERAL DENTISTRY
942			_2ddc _cBK
999			_c4754 _d4754