00302nam a22001217a 4500020001500000040000900015082001700024100001900041245002700060250002500087260004100112650002700153  a8122000584  cNust  a620.112bSIN  aSurendra Singh  aStrength of materials   a3rd Revised edition   aNew Delhi:bKonark Publisher,c1991.  aStrength of materials