00390nam a22001577a 4500003001200000005001700012008004100029020001400070040001200084082001500096100001600111245005300127250001200180260000900192650003100201NUST - PNEC20170116180908.0150902b        xxu||||| |||| 00| 0 eng d  a033337052  cLIBRARY  a620.11 JOH  aJohn, V. B.  aIntroduction to engineering materialcV. B. John  a2nd ed.  c1983  aMechanical EngineeringxME