000 00316nam a2200157Ia 4500
100 _aGurao, Rajendra G
080 _a519.52
526 _dNTB
526 _aPG
366 _f#REF!
942 _cBK
245 _aSampling methods
260 _aChandralok prakashan
_bKanpur
_c2016
300 _av,340
546 _aE
999 _c57535
_d57535