Competitive strategy :
techniques for analyzing industries and competitors /
Michael E. Porter
APA Citation
Porter, M. E. (1980). Competitive strategy: techniques for analyzing industries and competitors. New York: Free Press.
MLA Citation
Porter, Michael E., 1947-. Competitive Strategy: Techniques for Analyzing Industries And Competitors. New York: Free Press, 1980.
Warning: These citations may not always be complete (especially for serials).