00257nam a2200097Ia 4500003000400000008004100004040001600045082001500061245003800076260004500114GCL140319s9999    xx            000 0 eng d  aGCL / cGCL04a604.2bG P10aPrincipes of Engimeering Craphics  a[S.N] : bABT AKVERT SKIRA S.A ، c1994