APA (7. basım) Alıntı

PORTER MICHAEL E. (1980). COMPETITIVE STRATEGY: TECHNIQUES FOR ANALYSING ...COMPETITORS. FREE PRESS.

Chicago Style (17. basım) Atıf

PORTER MICHAEL E. COMPETITIVE STRATEGY: TECHNIQUES FOR ANALYSING ...COMPETITORS. NEW YORK LONDON: FREE PRESS, 1980.

MLA (9th ed.) Atıf

PORTER MICHAEL E. COMPETITIVE STRATEGY: TECHNIQUES FOR ANALYSING ...COMPETITORS. FREE PRESS, 1980.