TY  - BOOK
AU  - Porter, Michael E.
TI  - Competitive strategy: techniques for Analyzing Industries and competitors 
SN  - 0743260880
AV  - HD41.P6 2004 
PY  - 1980///
CY  - New York
PB  - Free Press
KW  - Competition
KW  - Industrial management
N1  - Includes bibliographical references
ER  -