BBook CoverCompetitive Strategy: Techniques for Analyzing Industries and CompetitorsHARDCOVER - Jun 1998 by Michael E. Porter
BBook CoverProven Strategies in Competitive Intelligence: Lessons from the Trenchesby The Society of Competitive Intelligence Professionals$14.41New
BBook CoverCompetitive Advantage: Creating and Sustaining Superior Performanceby Michael E. Porter$1.00Very Good
