APA-referens

Walker, O. C. (2006). Marketing strategy: A decision focused approach/5e (5th ed.). Tata McGraw-Hill.

Chicago-stil citat

Walker, Orville. C.Jr. Marketing Strategy: A Decision Focused Approach/5e. 5th ed. New Delhi: Tata McGraw-Hill, 2006.

MLA-referens

Walker, Orville. C.Jr. Marketing Strategy: A Decision Focused Approach/5e. 5th ed. Tata McGraw-Hill, 2006.