00254nam a2200109Ia 4500100001700000654001400017245004400031260003200075082001700107300000800124546001200132  aRiley/ W.F.   aMechanics  aIntroduction to Mechanics of  Materials  bJohn  WileyaNew Yorkc1989  a620.112bPAN  a242  aENGLISH