00322nam a2200109Ia 4500008004000000082001600040100004900056245002800105260004100133300001100174650002700185210210b1985   xxu||||| |||| 00| 0 eng d  a515.35 NARD  aNARAYANAN (S) & PILLAY (T K Manicavachagom).  aDifferential equations.  aMadrasbS Vishwanathan Pvt Ltdc1985  avi,262  aDifferential equations