APA-referens

Porter, M. E. (1998). The competitive advantage of nations: With a new introduction. New York: Free Press.

Chicago-stil citat

Porter, Michael E. The Competitive Advantage of Nations: With a New Introduction. New York: Free Press, 1998.

MLA-referens

Porter, Michael E. The Competitive Advantage of Nations: With a New Introduction. New York: Free Press, 1998.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.