Barker,Ernest. (1965). Principles of social and political theory. Oxford university press.
استشهاد بنمط شيكاغوBarker,Ernest. Principles of Social and Political Theory. London: Oxford university press, 1965.
MLA استشهادBarker,Ernest. Principles of Social and Political Theory. Oxford university press, 1965.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.