TY  - BOOK
AU  - Ravindran, A., Phillips, Don T. and Solberg, James J.
TI  - Operations research: : principles and practice
SN  - 0471086088
U1  - 658.4034 
PY  - 1987///
CY  - New York
PB  - ; John Wiley & Sons
KW  - Management
KW  - Operations Research
ER  -