Karnail Singh <br/><br/>
A treatise on railway curves with special reference to realignment of existing curves / 
Karnail Singh and Gurdial Singh 
 - Lucknow :  Research Designs and Standards Organisation,  1967 
 - 76 p. ;  31 cm. 
<br/><br/><label>Dewey Class. No.: </label>625.11[1]