TY  - BOOK
AU  - Buffa, Elwood S
AU  - Dyer, James S.
TI  - Management science / operations research: model formulation and solution methods/Buffa, Elwood S
SN  - 0471119156
U1  - 658.4034 BUF 
PY  - 1977///
CY  - New York
PB  - Wiley
KW  - Operations Research
ER  -