Baron, D. P. (2000). Business and its environment (3rd ed.). Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Baron, David P. Business and Its Environment. 3rd ed. Upper Saddle River, N.J.: Prentice Hall, 2000.
Lua MLA (8ú heag.)Baron, David P. Business and Its Environment. 3rd ed. Prentice Hall, 2000.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.