00310nam a2200121   4500020001500000020001800015082001400033100001500047245004600062260004400108300001200152650002400164  a8185749620  a9788185749624  a620.04GIL  aGill, P.S.  aEngineering Drawing (geometrical drawing)  aNew Delhi:bS.K. Kataria & Sons,c2012.  a710p. ;  aEngineering Drawing