000 00290nam a2200121Ia 4500
008 220201s1992 xx 000 0 eng d
100 _aVishwanath & Lal
245 0 _aEngineering mathematics
250 _a4th
260 _bNew Delhi: Satya Prakashan
_c1992
300 _a658
942 _2ddc
999 _c85652
_d85652