Manning, G. L., & Reece, B. L. (2007). Selling today: Creating customer value (Tenth edition.). Pearson Prentice Hall.
Cita Chicago (17th ed.)Manning, Gerald L., i Barry L. Reece. Selling Today: Creating Customer Value. Tenth edition. Upper Saddle River, N.J.: Pearson Prentice Hall, 2007.
Cita MLA (8th ed.)Manning, Gerald L., i Barry L. Reece. Selling Today: Creating Customer Value. Tenth edition. Pearson Prentice Hall, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.