"Construccions metàl·liques." . . "Bridges Design and construction." . . "Cobertes (Construcció)" . . "Structural design." . . "Pont Projectes i construcció." . . "Bridges." . . "Building, Iron and steel." . . . . "Ponts." . . . . . . "This book on bridge design would be impossible without the Roman's innovations on architecture. Although they had less-sophisticated technology, the Romans were remarkably good at engineering bridges."@en . . . . "Bridge and structural design" . . "Bridge and structural design"@en . . . . . . . . . . . . . . . . . . . . . . . . . . . "Roofs." . .