Normas ASTM 

 - 77 páginas 
<br/><br/> "American Society for Testing and Materials"  Traduccion de: ASTM C 29/C 29M-97 Standard test method for unit weight and voids in aggregate [y otros] 
<br/><br/><label>ISBN: </label>9684641001 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Concreto--Normas
<br/><br/><label>LC Class. No.: </label>TA439  / N67 2001