TY  - BOOK
AU  - taha,hamdy A.
AU  - mongy,mohamed A.
TI  - operation research applications / 
T2  - External Notes ؛
U1  - 338.9 21
PY  - 1964///
CY  - cairo : 
PB  - the institute of national planning, 
KW  - mathematical calculations
KW  - research applications
ER  -