Jacobs, David, 1939- Bridges, canals & tunnels, [electronic resource] / by David Jacobs and Anthony E. Neville. Consultant: Robert M. Vogel.. — [New York] : American Heritage Pub. Co.; distribution by Van Nostrand [Princeton, N.J.,, 1968]. — 159 p. : illus. (part col.) 27 cm. - The Smithsonian library.