PORTER MICHAEL. (1990). COMPETITIVE ADVANTAGE OF NATIONS: WITH A NEW INTRODUCTION. THE FREE PRESS.
Chicago Style aipamenaPORTER MICHAEL. COMPETITIVE ADVANTAGE OF NATIONS: WITH A NEW INTRODUCTION. NEW YORK: THE FREE PRESS, 1990.
MLA aipamenaPORTER MICHAEL. COMPETITIVE ADVANTAGE OF NATIONS: WITH A NEW INTRODUCTION. THE FREE PRESS, 1990.
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