TY  - BOOK
AU  - SASIEN, MAURICE,YASPAN, ARTHUR,FRIEDMAN, LAWRENCE
TI  - OPERATION RESEARCH
SN  - 0-471-75471-4
U1  - 658.4034 SAS'O 
PY  - 1959///
CY  - NEWYORK
PB  - JOHN WILEY
ER  -