TY  - BOOK
AU  - Porter, Michael E
TI  - Competitive advantage: creating and sustaining superior performance with a new introduction
SN  - 0684841460
U1  - 658 P6C6 
PY  - 1985///
CY  - New York
PB  - Free Press
KW  - Competition
KW  - Industrial Management
KW  - Management
ER  -