00259nam a2200097Ia 450000500170000000800410001708200170005810000180007524500260009326000420011920260325112143.0260325s9999||||xx |||||||||||||| ||und||  a530.76 W151P  aWalker, Jearl 0aPrinciples of physics  aNew DelhibWiley India pvt ltd.c2014