Powers, T. C. <br/><br/>
Hydraulic pressure in concrete / by T. C. Powers. 

 - Chicago : atories 
 - [12] p. 
 - Bulletin 63 / Portland Cement Association .
<br/><br/> "Reprinted from the copyrighted Proceedings of the American- Society of Civil Engineers, Paper No. 742, Vol. 81, July, - 1955."