Gaya APA
Porter, Michael E.. (1985).
Competitive advantange : creating and sustaining superior performance .
New York:
Free Press.
Gaya Chicago
Porter, Michael E..
Competitive advantange : creating and sustaining superior performance.
New York:
Free Press,
1985.
Text.
Gaya MLA
Porter, Michael E..
Competitive advantange : creating and sustaining superior performance.
New York:
Free Press,
1985.
Text.
Gaya Turabian
Porter, Michael E..
Competitive advantange : creating and sustaining superior performance.
New York:
Free Press,
1985.
Print.