Varma, Hari Om. <br/><br/>
Econometric cost functions : a study of Indian railways /  
Hari Om Varma. 
 - New Delhi :   Anmol Publications ,   1988. 
 - xii,240p. :   ills.,graph.,tab, ;   22cm.  8 Plates .  
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<br/><br/><label>ISBN: </label>8170410703  Rs175.00 
<br/><br/><label>Subjects--Index Terms: </label>RAIL ROADS-COST OF OPERATION 
<br/><br/><label>Dewey Class. No.: </label>385.1  / VAR/E