APA način citiranja (7. izdanje)

PORTER MICHAEL E. (1980). COMPETITIVE STRATEGY: TECHNIQUES FOR ANALYZING INDUSTRIES AND COMPETITORS. FREE PRESS.

Čikaški stil citiranja (17. izdanje)

PORTER MICHAEL E. COMPETITIVE STRATEGY: TECHNIQUES FOR ANALYZING INDUSTRIES AND COMPETITORS. NEW YORK: FREE PRESS, 1980.

MLA način citiranja (9. izdanje)

PORTER MICHAEL E. COMPETITIVE STRATEGY: TECHNIQUES FOR ANALYZING INDUSTRIES AND COMPETITORS. FREE PRESS, 1980.