00255nam a2200109Ia 4500100003000000654001600030245002500046260003900071082001500110300000800125546001200133  aNarayana/K.L/ Kannaiah/P   aengineering  aEngineering Graphics  bTata Mc Graw hillaNew Delhic1988  a604.2bNAR  a544  aENGLISH