00801nam0-22002651i-450-990002615310403321000261531FED01000261531(Aleph)000261531FED0100026153120000920d1980----km-y0itay50------baENGCompetitive strategy. Techniques for analy-zing indutries and competitorsdi PORTE R MichaelNew YorkThe Free Press19808 ,396 pp.Porter,Michael E.<1947- >5334ITUNINARICAUNIMARCBK9900026153104033211-6-133-TI5534ECAECACompetitive strategy. Techniques for analy-zing indutries and competitors433361UNINAING01