000 00307nam a2200133Ia 4500
008 221117b |||||||| |||| 00| 0 eng d
040 _aBGL
_cBGL
082 _a658.57018 Ahu:R
100 _aAhuja Ram
245 0 _aRESEARCH METHODS
260 _aNew Delhi
_bRawat Pub
_c2018
300 _a454p
942 _cGB
999 _c19560
_d19560