000 00280nam a2200121Ia 4500
008 220201s1998 xx 000 0 eng d
082 _a510
_bDAS
100 _aDass,H.K.
245 0 _aEngineering mathematics
260 _bS.Chand
_aNew Delhi
_c1998
300 _a592p.
942 _2ddc
999 _c9427
_d9427