TY  - BOOK
AU  - Naaman,Antoine E.
AU  - Breen, John Edward,
ED  - American Concrete Institute.
ED  - International Symposium On External Prestressing In Bridges
TI  - External prestressing in bridges
T2  - Sp / american concrete institute
AV  - TG340 E97
PY  - 1990///
CY  - Detroit, michigan
PB  - Aci
KW  - Fuentes de concreto
KW  - Congresos
KW  - Construcciones de concreto pretensado
ER  -