00498nam a2200157Ia 4500008004100000020001800041040001700059082002300076100002200099245011400121250000800235260002900243300001000272650002700282700003100309190329s9999||||xx |||||||||||||| ||und||  a9788131728222  aNITILcNITIL  221sta515.35bE25D  aEdwards , C Henry 0aDifferential equations and boundry value problemsbcomputing and modelingcC Henry Edwards and David E Penney  a3rd  aNew DelhibPearsonc2013  a801p.  aDIFFERENTIAL EQUATIONS  aPenney, David E, jt. auth.