Paul,Ellen frankel. (1990). Foundations of moral and political philosophy. B. Blackwell for the Social Philosophy and Policy Center, Bowling Green State University.
استشهاد بنمط شيكاغوPaul,Ellen frankel. Foundations of Moral and Political Philosophy. Oxford, UK ; Cambridge, MA, USA: B. Blackwell for the Social Philosophy and Policy Center, Bowling Green State University, 1990.
MLA استشهادPaul,Ellen frankel. Foundations of Moral and Political Philosophy. B. Blackwell for the Social Philosophy and Policy Center, Bowling Green State University, 1990.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.