000 00273nam a2200109Ia 4500
008 240421s9999 xx 000 0 und d
100 _aBhatnagar, Virendra
245 0 _aSwapandarshi Engineer Vishveshveraaya
260 _aNCERT
_bNCERT
_c1987
300 _a96p.
942 _cBK
999 _c14053
_d14053