000 00272nam a2200121Ia 4500
008 220201s9999 xx 000 0 eng d
082 _a658
_bTYA
100 _aTyagi, M.P.
245 0 _aAnusandhan Padhatiya
260 _bSanjay Publications
300 _a256
942 _2ddc
999 _c7489
_d7489