TY  - BOOK
AU  - Ravindran,A.
AU  - Phillips,Don T.
AU  - Solberg,James J.
TI  - Operations research : principles and practice
SN  - 047185980X
U1  - T/57.6 
PY  - 1986///
CY  - New York
PB  - Jon Wiley & Sons.
KW  - Operations research.
ER  -