TY  - BOOK
AU  - Ravindran, A.
AU  - Phillips, Don T.
TI  - Operations research : : principles and practice 
SN  - 9788126512560
U1  - 001.424 RAV-A 
PY  - 2006///
CY  - India
PB  - John Wiley
KW  - Operations research
ER  -