000 00251nam a2200109Ia 4500
008 240421s9999 xx 000 0 und d
100 _aSheri, J.P,
245 0 _aGrah Vigyan Shikshan
260 _aAgra
_bAggarwal
_c2012
300 _a358p.
942 _cBK
999 _c15554
_d15554