00465nam a2200169Ia 4500008004100000020001800041082001800059100001700077245006400094250000600158260004500164300000800209650001600217650001800233653002700251700001700278170901s2009    xx            000 0 und d  a9788173198298  a515.353bS33P  aSharma, J.N. 0aPartial Differential Equations for Engineers and Scientists  a2  aNew DelhibNarosa Publishing Housec2009  a339  aMathematics  aPure Sciences  aDifferential equations  aSingh, Kehar