TY  - BOOK
AU  - Porter,Michael E.
TI  - Competitive advantage: creating and sustaining superior performance 
SN  - 0743260872 
AV  - HD41 POR
PY  - 2004///
CY  - New York, London
PB  - Free Press
KW  - Competition
KW  - Performance
KW  - Industrial management
N1  - Originally published: 1998; Includes bibliographical references and index
ER  -