TY  - BOOK
AU  - Wynyard,John
AU  - Pearson,Marshall
TI  - Tunnels and bridges
U1  - 624 23rd ed.
PY  - 1964///
CY  - Exeter
PB  - Wheaton of Exeter
KW  - Tunnels
KW  - Juvenile literature
KW  - Bridges
N1  - Includes index
ER  -