TY  - BOOK
AU  - Lewis, W Cries
AU  - Petersen, H
TI  - Managerial economics
SN  - 0 02 946267 3
U1  - 338 .092 
PY  - 1989///
CY  - New york
PB  - Macmillan Press Ltd
KW  - Linear programming
KW  - managerial decisions
KW  - perfect competition
ER  -