Walker, O. C., Boyd, H. W., & Mullins, J. W. (2003). Marketing Strategy: A Decision-Focused Approach (4th ed.). গপএৎধ-িঐরষষ/ওৎরিহ.
Cita Chicago (17th ed.)Walker, Orville C., Harper W. Boyd, i John W. Mullins. Marketing Strategy: A Decision-Focused Approach. 4th ed. Boston: গপএৎধ-িঐরষষ/ওৎরিহ, 2003.
Cita MLA (9th ed.)Walker, Orville C., et al. Marketing Strategy: A Decision-Focused Approach. 4th ed. গপএৎধ-িঐরষষ/ওৎরিহ, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.