Hari Om Varma <br/><br/>
Economatric cost functions ( A study of Indian railways ) 

 - New Delhi  Anmol Publications  1988 
 - 240p 
<br/><br/>Hari Om Varma: Economatric cost functions ( A study of Indian railways ).  New Delhi.  Anmol Publications, 1988. 81-7041-070-3 Rs. 175.00--(519.502433VAR)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>81-7041-070-3 
<br/><br/><label>Dewey Class. No.: </label>519.502433  / VAR