Singh, Gurdial. <br/><br/>
Waterway required for bridges / 
Gurdial Singh. 
 - Lucknow :  Govt. Press,  1957. 
 - 54 p. :  map, fig. ;  24 cm. 
 - Technical monograph ;  no.7 .
<br/><br/><label>Dewey Class. No.: </label>625.1