Papers 

 - London GB :   Cemento and Concrete Association,   s.a. 
 - 2 v. 
<br/><br/><label>ISBN: </label>721000010721000029 
<br/><br/><label>Subjects--Topical Terms: </label><br/>HORMIGONES LIVIANOS
<br/><br/><label>Universal Decimal Class. No.: </label>624.012.45