Gaya APA
PORTER, MICHAEL. (1990).
THE COMPETITIVE ADVANTAGE OF NATIONS .
NEW YORK:
THE FREE PRESS.
Gaya Chicago
PORTER, MICHAEL.
THE COMPETITIVE ADVANTAGE OF NATIONS.
NEW YORK:
THE FREE PRESS,
1990.
Text.
Gaya MLA
PORTER, MICHAEL.
THE COMPETITIVE ADVANTAGE OF NATIONS.
NEW YORK:
THE FREE PRESS,
1990.
Text.
Gaya Turabian
PORTER, MICHAEL.
THE COMPETITIVE ADVANTAGE OF NATIONS.
NEW YORK:
THE FREE PRESS,
1990.
Print.