Gaya APA
PORTER, Michael E.. (1985).
Competitive advantage : creating and sustaining superior performance .
New York:
The Free Press.
Gaya Chicago
PORTER, Michael E..
Competitive advantage : creating and sustaining superior performance.
New York:
The Free Press,
1985.
Monograf.
Gaya MLA
PORTER, Michael E..
Competitive advantage : creating and sustaining superior performance.
New York:
The Free Press,
1985.
Monograf.
Gaya Turabian
PORTER, Michael E..
Competitive advantage : creating and sustaining superior performance.
New York:
The Free Press,
1985.
Monograf.