000 00380n a2200169 a 4500
000 B B
001 005356
005 20220201170710.0
082 _a001.42
_bM89
100 _aCochran, William G.
245 _aSampling Techniques
250 _a3rd
260 _aNew Delhi
_bWiley Eastern
_c1989
300 _axvi,
690 _aGeneral,Reseach Methods
908 _aG
999 _c5352
_d5352