Παραπομπή APA

Walker, R. L., & Ivanhoe, P. J. (2007). Working virtue: Virtue ethics and contemporary moral problems. Clarendon Press ; Oxford University Press.

Παραπομπή Chicago Style

Walker, Rebecca L., και P. J. Ivanhoe. Working Virtue: Virtue Ethics and Contemporary Moral Problems. Oxford : New York: Clarendon Press ; Oxford University Press, 2007.

Παραπομπή MLA

Walker, Rebecca L., και P. J. Ivanhoe. Working Virtue: Virtue Ethics and Contemporary Moral Problems. Clarendon Press ; Oxford University Press, 2007.