Porter Michael E. (1980). Competitve Strategy: Techniques for Analyzing Industries and Competitors. Free Press.
Chicago Style (17th ed.) CitationPorter Michael E. Competitve Strategy: Techniques for Analyzing Industries and Competitors. New York: Free Press, 1980.
MLA (9th ed.) CitationPorter Michael E. Competitve Strategy: Techniques for Analyzing Industries and Competitors. Free Press, 1980.
Warning: These citations may not always be 100% accurate.