TY  - BOOK
AU  - Porter,Michael E.
TI  - Competitive Advantage: Creating and Sustaining Superior Performance : With A New Introduction 
SN  - 9780684841465
AV  - HD41. P668  
PY  - 1998///
CY  - New York
PB  - Free Press
KW  - Competition
KW  - Industrial management
N1  - Includes bibliographical references (p. 537-540) and index
ER  -