TY  - BOOK
AU  - Phillips, Don T. and Others
AU  - Ravindran, A. ; jt. auth.
AU  - Solberg, James J. ; jt. auth.
TI  - Operational research; principles and practice
U1  - 658.4034 
PY  - 1976///
CY  - New York
PB  - John Wiley
ER  -