Pfeifer, Donald W. <br/><br/>
Sand replacement in structural lightweight concrete: freezi-ng and thawing test / by Donald W. Pfeifer. 

 - Skokie, Illinois : atories, Development Department 
 - [26] p. 
 - Bulletin D126 / Portland Cement Association, Research and D-evelopment Laboratories, Development Department .
<br/><br/> "Authorized reprint from copyrighted Journal of the America-n Concrete Institute November 1967. Proceedings Vol. 64, p.-p. 735-744."