Cita APA (7th ed.)

PORTER MICHAEL. (1990). COMPETITIVE ADVANTAGE OF NATIONS: WITH A NEW INTRODUCTION. THE FREE PRESS.

Cita Chicago (17th ed.)

PORTER MICHAEL. COMPETITIVE ADVANTAGE OF NATIONS: WITH A NEW INTRODUCTION. NEW YORK: THE FREE PRESS, 1990.

Cita MLA (9th ed.)

PORTER MICHAEL. COMPETITIVE ADVANTAGE OF NATIONS: WITH A NEW INTRODUCTION. THE FREE PRESS, 1990.