TY  - BOOK
AU  - Billington, David P.
TI  - The tower and the bridge 
SN  - 0-465-08677-2.
AV  - TA636.B54 
CY  - New York
KW  -  Bridges--Design
KW  -  Towers--Design and construction
KW  - Engineering
KW  - Structural engineering
ER  -