TY  - BOOK
AU  - Porter, Michael E. 
TI  - Competitive strategy: techniques for analyzing industries and competitors 
SN  - 0684841487
U1  - CIR 658.21 P847 1998 
PY  - 1998///
CY  - New York
PB  - The Free Press
KW  - Competition
KW  - Industrial management
N1  - Includes glossary, and index
ER  -