Vickers, S. . G. (1965). The art of judgment: A study of policy making. University papaerbacks.
استشهاد بنمط شيكاغوVickers, Sir Geoffrey. The Art of Judgment: A Study of Policy Making. London: University papaerbacks, 1965.
MLA استشهادVickers, Sir Geoffrey. The Art of Judgment: A Study of Policy Making. University papaerbacks, 1965.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.