BBook CoverCompetitive Advantage: Creating and Sustaining Superior PerformanceHARDCOVER - Jan 1985 by Michael E. Porter
BBook CoverCompetitive Strategy: Techniques for Analyzing Industries and Competitorsby Porter, Michael E.$1.00Very Good
BBook CoverCompetitive Strategy: Techniques for Analyzing Industries and Competitorsby Porter, Michael E.$6.76New
BBook CoverCreating Competitive Advantage: Give Customers a Reason to Choose You Over Your Competitorsby Smith, Jaynie L.$1.00Acceptable