00800nam0-22002651i-450-990002615360403321000261536FED01000261536(Aleph)000261536FED0100026153620000920d1980----km-y0itay50------baENGCompetitive strategy. Techniques for analyzing industries and competitorsdi PORTER MichaelNew YorkThe Free Press19808 ,396 pp.Porter,Michael E.<1947- >5334ITUNINARICAUNIMARCBK9900026153604033211-6-134-TI5536ECAECACompetitive strategy. Techniques for analyzing industries and competitors433365UNINAING01