TY  - BOOK
AU  - Porter,Michael E..
TI  - Competitive Advantage: Creating and Sustaining Superior Performance
SN  - 9780684841465
AV  - HD41 .P67 1998
PY  - 1998///
CY  - NewYork
PB  - Free Press
KW  - Competition
KW  - Industrial management
ER  -