APA Style
Porter, Michael E.. (1985).
Competitive Advantage .
New Yorkk:
FREE PRESS.
Chicago Style
Porter, Michael E..
Competitive Advantage.
New Yorkk:
FREE PRESS,
1985.
Teks.
MLA Style
Porter, Michael E..
Competitive Advantage.
New Yorkk:
FREE PRESS,
1985.
Teks.
Turabian Style
Porter, Michael E..
Competitive Advantage.
New Yorkk:
FREE PRESS,
1985.
Teks.