APA
Cahn S. M., Markie P. J., . (2009). Ethics. New York: Oxford University Press.
Chicago
Cahn Steven M, Markie Peter J, . 2009. Ethics. New York: Oxford University Press.
Harvard
Cahn S. M., Markie P. J., . (2009). Ethics. New York: Oxford University Press.
MLA
Cahn Steven M, Markie Peter J, . Ethics. New York: Oxford University Press. 2009.