Samuelson, W., & Marks, S. G. (2006). Managerial economics (5th ed.). John Wiley & Sons.
Cita Chicago (17th ed.)Samuelson, William, i Stephen G. Marks. Managerial Economics. 5th ed. Hoboken, N.J: John Wiley & Sons, 2006.
Cita MLA (8th ed.)Samuelson, William, i Stephen G. Marks. Managerial Economics. 5th ed. John Wiley & Sons, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.