TY  - BOOK
AU  - Porter, Michael E.
TI  - Competitive Advantage: : Competitive Advantage
SN  - 0029250900
U1  - 658 
PY  - 1985///
CY  - New York: 
PB  - The Free Press, 
KW  - Business Unit
KW  - Cost
KW  - Management
KW  - Value Chain
ER  -