000 00323nam a2200121Ia 4500
008 220505s1977 xx 000 0 und d
041 _aeng
082 _a519.52/COC
100 _aCochran,William.G
_9677245
245 _aSampling Techniques
260 _aNew Delhi
_bWiley Eastern Ltd.
_c1977
650 _aMATHEMATICS
_9677246
999 _c466083
_d466083