APA (7th ed.) Zitazioa
Walker, O. C. (2003). Marketing strategy: A decision-focused approach (4th ed.). McGraw-Hill/Irwin.
Chicago Style (17th ed.) Zitazioa
Walker, Orville C. Marketing Strategy: A Decision-focused Approach. 4th ed. Boston: McGraw-Hill/Irwin, 2003.
MLA (9th ed.) Zitazioa
Walker, Orville C. Marketing Strategy: A Decision-focused Approach. 4th ed. McGraw-Hill/Irwin, 2003.
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