Walker, O. C. (2006). Marketing strategy (5th ed.). Tata McGraw Hill.
Chicago Edition CitationWalker, Orville C. Marketing Strategy. 5th ed. New Delhi: Tata McGraw Hill, 2006.
Cita MLAWalker, Orville C. Marketing Strategy. 5th ed. Tata McGraw Hill, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.