APA Style
PORTER, Michael E.. (1985).
Competitive Advantage (Cetakan ke- 1).
New York:
The Free Press.
Chicago Style
PORTER, Michael E..
Competitive Advantage.
Cetakan ke- 1
New York:
The Free Press,
1985.
Text.
MLA Style
PORTER, Michael E..
Competitive Advantage.
Cetakan ke- 1
New York:
The Free Press,
1985.
Text.
Turabian Style
PORTER, Michael E..
Competitive Advantage.
Cetakan ke- 1
New York:
The Free Press,
1985.
Print.