Tichy, N. M. (2003). The Ethical Challenge (3rd ed.). Tata McGraw Hill Publishing.
Chicago-čujuhus (17. p.)Tichy, Noel M. The Ethical Challenge. 3rd ed. New Delhi: Tata McGraw Hill Publishing, 2003.
MLA-čujuhus (9. p.)Tichy, Noel M. The Ethical Challenge. 3rd ed. Tata McGraw Hill Publishing, 2003.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.