00377nam a22001217a 4500020001500000040000900015082001700024100002300041245010100064250001600165260005000181650002400231  a0071236716  cNUST  a621.815bNOR  a Norton, Robert L.  aDesign of Machinery : bAn Introduction to the Synthesis and Analysis of Mechanisms and Machines  a3rd Edition  aBoston,bMcGraw-Hill Higher Education,c2004.  aDesign of Machinery