TY  - BOOK
AU  - Portland Cement Association
TI  - Basic concrete construction practices
SN  - 0-471-67430-8
AV  - TA 682.4 P67
PY  - 1975///
CY  - New York
PB  - Wiley
KW  - Construcciones de concreto
KW  - Concreto
ER  -