TY  - BOOK
AU  - Pfeifer, Donald W.
TI  - Sand replacement in structural lightweight concrete: freezi-ng and thawing test / by Donald W. Pfeifer
CY  - Skokie, Illinois : atories, Development Department
N1  - "Authorized reprint from copyrighted Journal of the America-n Concrete Institute November 1967. Proceedings Vol. 64, p.-p. 735-744."
ER  -