Ford, C. L. <br/><br/>
gravimetric method for the determination of barium oxide in- portland Cement / by C. L. Ford. 

 - Skokie, Illinois : atories 
 - 8 p. 
 - Bulletin 115 / Portland Cement Association .
<br/><br/> "Authorized reprint from the copyrighted ASTM Bulletin No. - 247, July, 1960".