Cita APA

Porter, M. E. (1980). Competitive strategy: Techniques for analyzing industries and competitors. Free Press.

Citación estilo Chicago

Porter, Michael E. Competitive Strategy: Techniques for Analyzing Industries and Competitors. New York: Free Press, 1980.

Cita MLA

Porter, Michael E. Competitive Strategy: Techniques for Analyzing Industries and Competitors. Free Press, 1980.

Warning: These citations may not always be 100% accurate.