00359nam a22001457a 4500003001200000005001700012008004100029020001500070040001200085082001200097100002300109245005500132260001100187650001500198NUST - PNEC20170116180834.0150804b        xxu||||| |||| 00| 0 eng d  a8121908175  cLIBRARY  a530 AVA  a Avadhanulu, M.N.,  aA textbook of engineering physicsc M.N.Avadhanulu  cc 1992  aPhysicsx-