000 00334nam a2200133Ia 4500
005 20260413100721.0
008 230516s9999||||xx |||||||||||||| ||und||
100 _aAggarwal B.K.
245 0 _aIntrod to engg materials
260 _bN Delhi Tatamcgrew hill pub
_c1997
300 _a353
942 _cGB
999 _c3971
_d3971