TY  - BOOK
AU  - Porter,, Michael E
TI  - Competitive Strategy: techniques for analysing industries and competitors / 
SN  - 0-7432-6088-0
U1  - 658 
PY  - 1980///
CY  - New York
PB  - Free Press
KW  - Management
KW  - Industrial Management
N1  - Includes index and bibliography
ER  -