Jagjit Singh <br/><br/>
Statistical aids to railway operation 

 -  1957 
 - Technical papers, 330 .
<br/><br/><label>Standard No.: </label>69452 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> ECONOMICS<br/>RAILROADS
<br/><br/><label>Dewey Class. No.: </label>X415s2, J7