000 00315nam a2200133Ia 4500
008 130409s9999 xx 000 0 und d
100 _aGEORGEF. SIMMONS
245 _aDIFFRENTIAL EQUATIONS
250 _a7th
260 _bTata Mcgraw.delhi
_c2009
300 _a534
650 _aMATHS
_bB.SC.
942 _2ddc
_cBK
_01
999 _c12789
_d12789