Roark, Raymond Jefferson <br/><br/>
Formulas for stress and strain 

 - 4th ed. 
 - New York  McGraw-Hill  1965 
 - xiii, 432p. 
<br/><br/><label>ISBN: </label>0070530300 
<br/><br/><label>LC Class. No.: </label>TA 407.2 Roa