Baron, D. P. (2010). Business and its environment (6th ed.). Prentice Hall.
Cita Chicago (17th ed.)Baron, David P. Business and Its Environment. 6th ed. Upper Saddle River, N.J.: Prentice Hall, 2010.
Cita MLA (8th ed.)Baron, David P. Business and Its Environment. 6th ed. Prentice Hall, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.