000 00302nam a2200133Ia 4500
100 _aCochran, William G
020 _a0-85226-121-7
250 _a3rd ed
942 _cBK
245 _aSampling techniques
260 _aWiley Eastern Ltd., New Delhi
_c1977
082 _a311.21 Coc
300 _axvi, 428
999 _c62158
_d62158