Baron, D. P. (2000). Business and its environment (3rd ed.). Prentice Hall.
Cita Chicago (17th ed.)Baron, David P. Business and Its Environment. 3rd ed. Upper Saddle River, N.J.: Prentice Hall, 2000.
Cita MLA (8th ed.)Baron, David P. Business and Its Environment. 3rd ed. Prentice Hall, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.