TY  - BOOK
AU  - Steinman,David Barnard
AU  - Waston,Sara Ruth
TI  - Bridges and their builders
U1  - 624.209 
PY  - 1957///
CY  - New York
PB  - Dover Pub
KW  - Bridges
KW  - History
KW  - Bridges, Iron and steel
KW  - Bridges, Roman
KW  - Bridges, Arched
KW  - Engineers
N1  - Includes index
ER  -