TY  - BOOK
AU  - American concrete institute
AU  - American concrete institute
TI  - Recommended practice for evaluation of strength test results of concrete (ACI 214-77)
U1  - 620.170287 
CY  - Michigan
PB  - American concrete institute
N1  - 0; 0; 0; 620_170287000000000_AME
ER  -