000 00432nam a2200157Ia 4500
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040 _aNITIL
_cNITIL
082 _221st
_a311
_bG977E
100 _aGupta, S P
245 0 _aElementary statistical methods
_cS P Gupta
250 _a10th rev.
260 _aNew Delhi
_bSultan Chand and Sons
_c1993
300 _aiv, 646p.
650 _aStatistics; Sampling (Statistics)
942 _cBKS
999 _c50045
_d50045