TY  - BOOK
AU  - Troxell,George Earl
AU  - Davis,Harmer Elmer
TI  - Composition and the properties of concrete
AV  - TA439 .T74
U1  - 693.5 
PY  - 1956///
CY  - New York
PB  - McGraw-Hill
KW  - Concrete
ER  -