Richardson. (1993). Business ethics 93/94 (5th ed.). Dushkin.
Lua i Stíl Chicago (17ú heag.)Richardson. Business Ethics 93/94. 5th ed. Connecticut: Dushkin, 1993.
Lua MLA (9ú heag.)Richardson. Business Ethics 93/94. 5th ed. Dushkin, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.