APA (7th ed.) Citation

PORTER MICHAEL E. (1980). COMPETITIVE STRATEGY. FREE PRESS.

Chicago Style (17th ed.) Citation

PORTER MICHAEL E. COMPETITIVE STRATEGY. NEW YORK: FREE PRESS, 1980.

MLA (9th ed.) Citation

PORTER MICHAEL E. COMPETITIVE STRATEGY. FREE PRESS, 1980.

Warning: These citations may not always be 100% accurate.