000 00347nam a2200133Ia 4500
005 20260413100708.0
008 230516s9999||||xx |||||||||||||| ||und||
100 _aAggarwal Ravi & Gupta
245 0 _aEssential of ordenary differental
260 _bSingapore mcgrew hill
_c1993
300 _a467
942 _cGB
999 _c3734
_d3734