00311    a2200121   4500000002500000020001500025100002600040245005000066250000600116260002800122264002200150999001700172     nam a22     7a 4500  a1576450082  aPefley,Richard K9104  aMechanical engineering problems and solutions  a6  bEngineering Pressc1997  bEngineering Press  c35990d35990