TY  - BOOK
AU  - Varma,Hari Om
TI  - Econometric cost functions : a study of Indian railways / 
SN  - 8170410703
U1  - 385.1 
PY  - 1988///
CY  - New Delhi : 
PB  - Anmol Publications , 
KW  - RAIL ROADS-COST OF OPERATION
N1  - NULL
ER  -