APA (7th ed.) Citation

PORTER MICHAEL E. (1985). COMPETITIVE ADVANTAGE: CREATING AND SUSTAINING SUPERIOR... FREE PRESS.

Chicago Style (17th ed.) Citation

PORTER MICHAEL E. COMPETITIVE ADVANTAGE: CREATING AND SUSTAINING SUPERIOR... NEW YORK: FREE PRESS, 1985.

MLA (9th ed.) Citation

PORTER MICHAEL E. COMPETITIVE ADVANTAGE: CREATING AND SUSTAINING SUPERIOR... FREE PRESS, 1985.