00269nam a2200109Ia 4500008004100000082001500041100001700056245002600073250001200099260003900111300000900150240913s9999||||xx |||||||||||||| ||und||  a530  WAL/P  aJearl Walker 0aPrinciples of physics  a9th Ed.  bWiley India(P)LtdaNew Delhic2012  a1248