Bridges, canals & tunnels /
Jacobs, David.
Bridges, canals & tunnels / by David Jacobs and Anthony E. Neville. Consultant: Robert M. Vogel. - New York : American Heritage Pub. Co., 1968. - 159 p. : ill. (part col.) - The Smithsonian library .
Civil engineering--History.--United States
Bridges, canals & tunnels / by David Jacobs and Anthony E. Neville. Consultant: Robert M. Vogel. - New York : American Heritage Pub. Co., 1968. - 159 p. : ill. (part col.) - The Smithsonian library .
Civil engineering--History.--United States