000 00303nam a22001334a 4500
020 _a0-85226-121-7
082 _a001.422 COC
100 _aCochran,William G.
245 1 _aSampling Techniques
250 _a3
260 _aIndia:
_bWiley Eastern Limited,
_c1977
300 _axvi;428p.:
942 _cBK
999 _c523789
_d523789