TY  - BOOK
AU  - Porter, Michael E.
TI  - Competitive Advantage: Creating and Sustaining Superior Performance 
SN  - 07743260872
AV  - HD41 .P66 1998 11627
PY  - 1998///
CY  - New York
PB  - Free Press
KW  - Competition, Industrial management
N1  - Includes bibliographic references and index
ER  -