TY  - BOOK
AU  - Porter, Michael E.
TI  - Competitive strategy: techniques for analyzing industries and competitors 
SN  - 0029253608
AV  - HD 41 .P674 1980
PY  - 1980///
CY  - New York
PB  - Free Press
KW  - Competition
KW  - Industrial management
N1  - BSBA
ER  -