TY  - BOOK
AU  - Humber, William,
TI  - A complete treatise on cast and wrought iron bridge construction, including iron foundations, in three parts: Theoretical, practical, and descriptive 
AV  - TG184 H85
PY  - 1870///
CY  - London
PB  - Lockwood
KW  - Hierro
KW  - Fundicion
KW  - Puentes
KW  - Diseño y construcción
ER  -