APA Style
Porter, Michael E. (1990).
The Competitive Advantage of Nations .
United Stated of America:
The Free Press.
Chicago Style
Porter, Michael E.
The Competitive Advantage of Nations.
United Stated of America:
The Free Press,
1990.
Text.
MLA Style
Porter, Michael E.
The Competitive Advantage of Nations.
United Stated of America:
The Free Press,
1990.
Text.
Turabian Style
Porter, Michael E.
The Competitive Advantage of Nations.
United Stated of America:
The Free Press,
1990.
Print.