Standards of design for concrete / 
United States department, bureau of yars and docks 
 - 216 páginas 
<br/><br/> "no. 3yb november 15, 1929"  "(supersedes no. 3ya - may 15, 1924)" 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Construcciones de concreto<br/>Concreto armado
<br/><br/><label>LC Class. No.: </label>TA683  / E73