TY  - BOOK
AU  - Herrin,Dean A.
ED  - Estados Unidos.
TI  - America transformed: engineering and technology in the nineteenth century 
SN  - 0784405298
AV  - TA23 H47
U1  - 609.73/09/034 21
PY  - 2002///
CY  - Reston, Virginia
PB  - American Society of Civil Engineers
KW  - Ingeniería
KW  - Estados Unidos
KW  - Historia
KW  - Siglo XIX
KW  - Tecnología
N1  - "Selections from the Historic American Engineering Record, National Park service."
ER  -