Richardson. (1993). Business ethics 93/94 (5th ed.). Dushkin.
Chicago-čujuhus (17. p.)Richardson. Business Ethics 93/94. 5th ed. Connecticut: Dushkin, 1993.
MLA-čujuhus (9. p.)Richardson. Business Ethics 93/94. 5th ed. Dushkin, 1993.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.