APA-viite (7. p.)
Wilkens, S. (2011). Beyond bumper sticker ethics: An introduction to theories of right and wrong (Second edition.). IVP Academic.
Chicago-viite (17. p.)
Wilkens, Steve. Beyond Bumper Sticker Ethics: An Introduction to Theories of Right and Wrong. Second edition. Downers Grove, Illinois: IVP Academic, 2011.
MLA-viite (9. p.)
Wilkens, Steve. Beyond Bumper Sticker Ethics: An Introduction to Theories of Right and Wrong. Second edition. IVP Academic, 2011.
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