TY  - BOOK
AU  - Porter Michael E.
TI  - Competitive advantage: creating and sustaining superior performance with a new introduction
SN  - 9780684841465
AV  - HD 41 .P67 1998
PY  - 1998///
CY  - NewYork
PB  - The Free Press
KW  - Competition
KW  - Industrial management
ER  -