000 00319nam a2200145Ia 4500
008 220421s9999||||xx |||||||||||||| ||und||
020 _c295
040 _aET
100 _aVASISTHA, A R
245 0 _aDIFFERENTIAL EQUATIONS
260 _bKRISHNA PRAKASHAN
_aMEERUT
300 _a191
500 _a54542
942 _cBK
999 _c60555
_d60555