TY  - BOOK
AU  - Porter,Michael E.
TI  - Competitive strategy: techniques for analyzing industries and competitors: with a new introduction 
SN  - 0684841487 (hbk) :
AV  - HD41 .P67 1998
PY  - 1998///
CY  - New York
PB  - The Free Press
KW  - Competition
KW  - Industrial management
ER  -