TY  - BOOK
AU  - Porter,Michael E.
TI  - Competitive strategy: Techniques for analyzing industries and competitors : with a new introduction 
SN  - 0-684-84148-7
U1  - 658 POR 
PY  - 1998///
CY  - New York
PB  - Free Press
KW  - Competition
KW  - Industrial management
N1  - Includes bibliographical references  and index
ER  -