TY  - BOOK
AU  - Buffa Elwood S
AU  -  Dyer JamesS
TI  - Essentials of management science/operation research
T2  - Wiley/Hamilton series in management and administration edited by Elwood S Buffa
U1  - X:89M, L8 
PY  - 0000///19*7
CY  - New York
PB  - John Wiley     
KW  - ECONOMICS
ER  -