Williamson, Geoffrey. <br/><br/>
Exploring bridges / 
Geoffrey Williamson. 
 - London :  Odhams,  c1967. 
 - 96 p. :  ill. ;  22 cm. 
<br/><br/> Includes index. 
<br/><br/>336  336 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Civil engineering<br/>Bridges
<br/><br/><label>Dewey Class. No.: </label>624.2 / W671e