00395nam a2200133 a 450000500170000002000180001708200160003510000220005124500660007326000440013930000250018350000310020870000220023920251203112044.0  a9780070530713  a515.35bSIM  aSimmons, George F  aDifferential equations with applications and historical notes  aNew DelhibTata McGraw Hillc1972-R2010  axxv,629p.c22cm.bPB  aincludes answers and index  aRobertson, John S