00309nam a2200121Ia 4500008004100000082001400041100001600055245003700071250001200108260003200120300000800152650002700160230106s9999    xx            000 0 und d  a620bVE-E  aVenugopal K 0aEngineering drawing and graphics  a3rd Ed.  aNew DelhibChander,M.c1999  a601  aMechanical Engineering