TY  - BOOK
AU  - Cooper, Leon.
AU  - Narayan, Bhat U.
AU  - Le Blanc, Larry J.
TI  - Introduction to operations research models
SN  - 0721626882
U1  - 001.424 
PY  - 1977///
CY  - Philadelphia
PB  - W. B. Saunders
ER  -