000 00356nam a2200169Ia 4500
008 190201s9999 xx 000 0 und d
020 _a9.78E+12
082 _a510
082 _bCHA
100 _aChawla C.Das
245 0 _aEngineering Mathmatics
250 _aseventh
260 _aNew Delhi
260 _bAsian
260 _c1987
300 _a32.17
999 _c25440
_d25440