Degenkolb, Oris H. <br/><br/>
Concrete box girder bridges   
by Oris H. Degenkolb. 
 - Ames  Iowa State Univ.  1977 
 - ix, 106p. 
 - ACI monograph, no. 10 .
<br/><br/><label>Dewey Class. No.: </label>624.4  / N77