00702nam0-22002531i-450-990002835500403321000283550FED01000283550(Aleph)000283550FED0100028355020000920d1980----km-y0itay50------baENGCompetitive strategyTechniques for analyziong industries and competitorsNew YorkThe Free Press1980Porter,Michael E.<1947- >5334ITUNINARICAUNIMARCBK9900028355004033219-2-32-RA7048RAECAECACompetitive strategy15718UNINAING01